NASA has used the MOXIE instrument on Perseverance to create oxygen on Mars. It was just enough to sustain a Martian astronaut for 10 minutes, but it has huge implications for terraforming the red planet.
NASA has used the MOXIE instrument on Perseverance to create oxygen on Mars. It was just enough to sustain a Martian astronaut for 10 minutes, but it has huge implications for terraforming the red planet.
From snapshots of Jezero Crater to 360-degree panoramas, here are some of the highlights captured by the US space agency's rover.
This video from NASA shows a first-person glimpse of an asteroid approach, which offers a sense of what it's like to land on another world. The post Video of NASA Probe Landing on Asteroid Is Otherworldly appeared first on Nerdist.
Microbes that may accidentally have been brought to the Red Planet could potentially wreak havoc, according to scientist Christopher Mason
China landed a spacecraft on Mars for the first time on Saturday, a technically challenging feat more difficult than a moon landing, in the latest step forward for its ambitious goals in space. It will join an American rover that arrived at the red planet in February. China’s first Mars landing follows its launch last month of the main section of what will be a permanent space station and a mission that brought back rocks from the moon late last year.
Is this how space travel will look some day? 'Sulu, punch it!' ShutterstockSome climatologists argue it may be too late to reverse climate change, and it’s just a matter of time before the Earth becomes uninhabitable – if hundreds of years from now. The recent movie Interstellar raised the notion that we may one day have to escape a dying planet. As astrophysicists and avid science fiction fans, we naturally find the prospect of interstellar colonization intriguing and exciting. But is it practical, or even possible? Or is there a better solution? Science fiction has painted a certain picture of space travel in popular culture. Drawing on stories of exploration from an age of tall ships, with a good helping of anachronisms and fantastical science, space exploration is often depicted in a romantic style: a crew of human travelers in high-tech ships wandering the Galaxy, making discoveries and reporting back home. Perhaps they even find habitable words, some teeming with life (typically humans with different-colored skin), and they trade, colonize, conquer or are conquered. Pretty much, they do as humans have always done since the dawn of their time on Earth. How close do these ideas resemble what we may be able to achieve in the next few hundred years? The laws of physics and the principles of engineering will go a long way to helping us answer this question. Nature’s speed limit Nature has given us a speed limit. We call it the speed of light – about 186,000 miles per second – because we first noticed this phenomenon by studying the properties of light, but it is a hard upper limit on all relative speeds. So, if it takes light one year to get somewhere, we can’t possibly get there sooner than one year. There is also the fact that the universe is big, really big. It takes light about eight minutes to get to our Sun, three years to get to the next-nearest star, 27,000 years to get to the center of our own Galaxy and more than 2,000,000 years to get to the next galaxy. The amazing thing about these distances is that, as far as the universe is concerned, this is all in the neighborhood. The vast distances between solar systems combined with the speed-of-light limit puts severe constraints on the realities of space travel. Every space-based science fiction writer has to decide early on how to deal with this white elephant standing proudly in the room. Much of the more recent science fiction employs some form of “worm hole” or “warping space”: bending the four-dimensional structure of space and time to create shortcuts between two spatial locations in the universe. Such possibilities have been analyzed with some mathematical rigor, and although the studies are tantalizing, they show that these methods cannot work unless we discover a form of matter that behaves very differently than anything we have ever seen. Nature’s speed limit – light – means it’s unlikely we’ll be able to hop in a space ship and roam the galaxy. Until we develop ‘warp’ technology, that is. Shutterstock Limits of propulsion Practical space propulsion systems available today and for the foreseeable future are based on Newton’s laws. In order to move forward, we have to throw something backwards or get hit by something moving forward. It turns out that even using the best propulsion systems available, there is not enough mass in the entire Universe to propel even a single human being up to half the speed of light. Even relative speeds of 0.01% of the speed of light start to get prohibitively expensive. Things look slightly better with advanced propulsion concepts such as thermonuclear propulsion, but optimistic near-future designs still top out at a few percent of the speed of light. Finding a habitat for humanity Large distances combined with low speeds means that exploration is going to take time. Astrobiologists tell us that our galaxy has no shortage of habitable worlds: estimates range from at least 1 every 10,000 stars to as many as 1 every 10 stars. Even so, given the vast distances between stars and the low speeds achievable by realistic spacecraft, you should plan on voyages between worlds taking centuries to millennia. Consider also what is meant by a “habitable world.” To an astrobiologist, this means a planet with water oceans orbiting a sun-like star. But habitability by humans requires more than just water, and the chances that ordinary humans could simply step out and populate such a world is slim. The atmosphere and living ecosystem of Earth is the result of its own unique evolutionary history, one that is unlikely to occur coincidentally on any other planet. Despite its current problems, the Earth is still far closer to the ideal that our species grew up in than any world we are likely to discover out in the Galaxy. Climatologists warn us of the devastation that could result from increasing the carbon dioxide in our atmosphere by less than a tenth of a percent. Compared to that, another living world, with its own unique ecology, would most likely have an environment that is unbreathable and infertile at best, lethally toxic at worst. Terraforming, or modifying such a world to be habitable to humans, would require reconstructing its atmosphere and biosphere practically from scratch, eradicating any native ecosystem. This would be a task orders of magnitude more challenging than the relatively minor tweaks needed to restore the Earth’s environment to a pristine state. Are there habitable worlds in this cloud of stars? Or at least ones we could make livable via terraforming? Shutterstock Artificial worlds Perhaps a more fundamental question, then, is why humans would wish to colonize other worlds. Given the centuries-long treks between stars, interstellar voyagers would necessarily have moved beyond the need for a planet to support their lifestyle: their vessels would be their habitat, autonomous and self-sufficient. They would not have to seek out new homes, they would build them. From an economic standpoint, this would be vastly more resource-efficient than converting entire planets. NASA-sponsored researchers have developed detailed plans for spinning habitats that could accommodate tens or hundreds of thousands of inhabitants, from material that could be mined on site from an asteroid a few hundred meters across. This type of construction would avoid one of the major expenses of space colonization: the cost of lifting millions of tons of building materials into space. Since our Solar system contains millions of such asteroids, they could support a population many times that of Earth, in air-conditioned comfort, with a fraction of the effort and none of the exotic technologies envisioned to terraform Mars, for example. Clean and green: an interior rendering of the Torus, an artificial world imagined by scientists at NASA and Stanford. NASA The torus, first conceived in 1975, consists of a doughnut-shaped ring, rotates once per minute to provide artificial gravity and could support 10,000 people. NASA So why travel the stars? Ultimately, travel to other stars and colonization of other planets will be driven not by need, but by desire: the intellectual impulse to explore strange new worlds, and perhaps an aesthetic preference for “natural” (albeit engineered) environments. Where do we go now? The commercialization of space flight promises to bring the cost of space travel down considerably, from tens of thousands of dollars per kilogram to just hundreds of dollars per kilogram, through economies of scale and reusable rockets. This means that space will be more accessible to more and more people. Already the lure of asteroid resources has fueled commercial competition. A single kilometer-sized metallic asteroid could supply hundreds of times the total known worldwide reserves of nickel, gold and other valuable metals. Space-based solar power could provide limitless renewable energy – once the cost of construction in space becomes manageable. The hyper-exponential growth that we have seen in other areas like automobiles and computers can now take place for space technology. The physical realities described above paint a very clear picture of the near future: orbital habitats perfectly designed for our lifestyle using resources obtained from our Sun, Earth, and the asteroids. So if Earth ever become uninhabitable, we won’t need to traverse the stars to find a new home. Orbital habitats will require a significant expansion of space industry, but this will happen soon enough, especially if we are forced to leave the planet for a little while so it can recover from our mistreatment. Of course, if we discover warp drive, the picture will be entirely different.This article is republished from The Conversation, a nonprofit news site dedicated to sharing ideas from academic experts. Read more:Want to become a space tourist? You finally can — if you have 0,000 and a will to sign your life awayNew warp drive research dashes faster than light travel dreams – but reveals stranger possibilitiesSpaceX: will the average person need to exercise during a commercial spaceflight? Fredrick Jenet is the creator/director of both the Center for Advanced Radio Astronomy at UT Brownsville and STARGATE, a public/private partnership with SpaceX. He works for UT Brownsville. He receives funding from the National Science Foundation (NSF), NASA, and the Department of Defense (DoD).Teviet Creighton is a professor in the Center for Advanced Radio Astronomy at UT Brownsville and STARGATE, a public/private partnership with SpaceX. He works for UT Brownsville. He receives funding from the National Science Foundation (NSF), NASA, and the Department of Defense (DoD).
A Falcon 9 SpaceX rocket shot up from Kennedy Space Center in Cape Canaveral, Florida at 6:56 p.m. EDT.
The Zhurong rover is almost ready to start scanning Mars' volcanic-rock fields for hidden water ice. Such reserves could help future Mars astronauts.
A Chinese lander carrying a rover successfully touched down on Mars for the first time, state media reports.Why it matters: This is the first time China has landed a spacecraft on another planet, and it launches the nation into an elite club of only a few space agencies to successfully make it to the Martian surface.Get market news worthy of your time with Axios Markets. Subscribe for free.What’s happening: The rover arrived in orbit around the Red Planet in February with the country's Tianwen-1 mission.The rover is reportedly designed to search for water, ice and possible signs of life.This was China's first attempt to land on Mars.The big picture: This mission fits into China’s broader plans in space.The nation is currently building a space station and is aiming to develop a research station on the Moon with Russia.More from Axios: Sign up to get the latest market trends with Axios Markets. Subscribe for free
This skill will help you “see” in the dark.
The remnants of China’s biggest rocket came crashing into the Indian Ocean just west of the Maldives archipelago a week ago on Sunday May 9. It was, according to Harvard astrophysicist Jonathan McDowell, a “reckless” end to one of the largest uncontrolled re-entries of a spacecraft in history. Most countries have tried to design their spacecraft to avoid such re-entries since large chunks of the Nasa space station Skylab fell from orbit and landed in Australia more than 40 years ago. “It makes the Chinese rocket designers look lazy that they didn’t address this,” McDowell said after the crash last week. While fears that the rocket parts would endanger life were averted, the event sparked fierce debate over China’s space programme and accusations of a disregard for safety.
Space company Rocket Lab, a manufacturer and launcher of small rockets carrying even smaller satellites into orbit, announced back in March that it will go public via a merger with special purpose acquisition company Vector Acquisition Corporation (NASDAQ: VACQ) sometime in the second quarter of 2021 (i.e., before June 30). In so doing, it promised to give investors a chance to own a piece of an "end-to-end space company with an established track record, uniquely positioned to extend its lead across a launch, space systems and space applications market forecast to grow to $1.4 trillion by 2030." Launching its 20th Electron rocket out of Launch Complex 1 in New Zealand at 7:11 a.m. EDT Saturday, Rocket Lab suffered a launch failure when the rocket's second stage abruptly shut down just seconds after ignition, causing a "loss of the mission," according to a Rocket Lab statement.
A fungus with the same chemical as psychedelic mushrooms eats away cicadas' abdomens and alters their behavior in strange ways.
Since ancient times, people have experimented with light, cherishing shiny metals like gold and cutting gemstones to brighten their sparkles. Today we are far more advanced in how we work with this ubiquitous energy. Starting with 19th-century experimentation, we began to explore controlling how light interacts with matter. Combining multiple materials in complex structures let us use light in new ways. We crafted lenses and mirrors to make telescopes to peer out into the universe, and microscopes to explore the world of the small. Today this work continues, on a much more detailed level. My own research into what are called “metamaterials” explores how we can construct materials in ways that do amazing – and previously impossible – things. We can build metamaterials to respond in particular ways to certain frequencies of light. For example, we can create a smart filter for infrared cameras that allows the user to easily determine if the white powder in an envelope is baking soda or anthrax, determine if a skin melanoma is benign or malignant and find the sewer pipe in your basement without breaking through the concrete. These are just a few applications for one device; metamaterials in general are far more powerful. Working with light What scientists call “light” is not just what we can see, but all electromagnetic radiation – from low-frequency radio waves to high-frequency X-rays. Normally, light moves through a material at a slower speed. For example, visible light travels through glass about 33 percent slower than it does through air. A material’s fundamental resistance to the transmission of light at a particular frequency is called its “index of refraction.” While this number changes with the light’s frequency, it starts at 1 – the index of refraction for a vacuum – and goes up. The higher the index, the slower the light moves, and the more its path bends. This can be seen when looking at a straw in a cup of water (see below) and is the basis of how we make lenses for eyeglasses, telescopes and other optics. Scientists have long wondered if they could make a material with a negative index of refraction at any given frequency. That would mean, for example, that light would bend in the opposite direction when entering the material allowing for new types of lenses to be made. Nothing in nature fits into this category. The properties of such a material – were it to exist – were predicted by Victor Veselago in 1967. These odd materials have properties that look very strange compared with our everyday experiences. In the picture below, we see two cups of water, each with a straw in it. The picture on the left is what happens normally – the section of the straw in the water appears disconnected from the part of the straw that is in the air. The image is displaced because air and water refract light differently. The image on the right indicates what the straw would look like if the fluid were a material with a negative index of refraction. Since the light bends in the opposite direction, the image is reversed, creating the observed illusion. At left: normal refraction. At right: with simulated negative refraction. Water glass with straw (normal) from shutterstock.com While Veselago could imagine these materials in the late 1960s, he could not conceive of a way to create them. It took an additional 30 years before John Pendry published papers in 1996, 1998 and 1999 describing how to make a composite man-made material, which he called a metamaterial. An early metamaterial using repeating elements of copper split-rings and copper wires. D. R. Smith et al., Left-handed Metamaterials, in Photonic Crystals and Light Localization, ed. C. M. Soukoulis (Kluwer, Netherlands, 2000)., CC BY-ND Making metamaterials This work was followed up experimentally by David R. Smith’s group in 2000, which created a metamaterial using copper split-rings on circuit boards and lengths of copper wires as repeating elements. The picture below shows one such example produced by his group. The size and shape of the split-rings and copper posts determines what frequency of light the metamaterial is tuned to. The combination of these components interacts with the incident light, creating a region with an fully engineered effective index of refraction. At present, we are only able to construct metamaterials that manage interactions with very specific parts of the electromagnetic spectrum. The electromagnetic spectrum, showing all types of light, including the narrow band of visible light. Philip Ronan, CC BY-SA Smith’s group worked initially in the microwave portion of the spectrum, because working with larger wavelengths makes metamaterial construction easier, as multiple copies of the split-rings and pins must fit into the space of one wavelength of the light. As researchers work with shorter wavelengths, metamaterial components need to be much smaller, which is more challenging to build. Since the first experiments, multiple research groups have made metamaterials that work in the infrared; some are skirting the fringe of the visible portion of the spectrum. For these short wavelengths, circuit boards, copper wires and pins are far too large. Instead the structures have to use micro- and nano-fabrication techniques similar to what is used to make computer chips. Creating ‘invisibility’ Soon after the first metamaterials were fabricated, researchers began engineering applications for which they would be useful. One application that got a lot of press was the creation of an “invisibility cloak.” Normally if a microwave radar were aimed at an object, some of the radiation would absorb and some would reflect off. Sensors can detect those disturbances and reconstruct what the object must have looked like. If an object is surrounded by the metamaterial cloak, then the radar signal bends around the object, neither being absorbed nor reflected – as if the object were never there. By creating a metamaterial layer on the surface of an object, you can change what happens to the light that hits the object. Why is this important? When you look at a still pool of water, it is not surprising to see your reflection. When you point a flashlight at a pond at night, some of that light beam bounces off onto the trees beyond. Now imagine you could coat the surface of that pond with a metamaterial that worked for all the visible spectrum. That would remove all reflection – you wouldn’t see your own reflection, nor any light bouncing into the woods. This type of control is very useful for determining specifically what type of light can enter or exit a material or a device. For example, solar cells could be coated with metamaterials that would admit only specific (e.g., visible) frequencies of light for conversion to electricity, and would reflect all other light to another device that collects the remaining energy as heat. The future of wave engineering Engineers are now creating metamaterials with what is called a dynamic response, meaning its properties vary depending on how much electricity is passing through it, or what light is aimed at it. For example, a dynamic metamaterial filter might allow passage of light only in the near infrared, until electricity is applied, at which point it lets through only mid-infrared light. This ability to “tune” the responsiveness of metamaterials has great potential for future applications, including uses we can’t yet imagine. The amazing thing about all of the wondrous possibilities of metamaterials’ interaction with light is that the principle works much more broadly. The same mathematics that predict the structure needed to produce these effects for light can be applied to the interaction of materials with any type of waves. A group in Germany has successfully created a thermal cloak, preventing an area from heating by bending the heat flow around it – just as an invisibility cloak bends light. The principle has also been used for sound waves and has even been discussed for seismic vibrations. That opens the potential for making a building “invisible” to earthquakes! We are only beginning to discover how else we might use metamaterials and their underlying principles.This article is republished from The Conversation, a nonprofit news site dedicated to sharing ideas from academic experts. Read more:Plasmonics: revolutionizing light-based technologies via electron oscillations in metalsTen years on, invisibility cloaks are close to becoming a manufacturable realityInvisibility cloaks closer thanks to ‘digital metamaterials’ Thomas Vandervelde receives funding from the National Science Foundation, the Air Force Office of Scientific Research, the Office of Naval Research, the Intelligence Community, the Alexander Von Humboldt Foundation, and Tufts University.
Perseverance and Curiosity have company. The China National Space Administration successfully landed its Zhurong rover on Mars on Saturday, state media reports, making China the third country after the United States and Soviet Union to touch down on the Red Planet (the 1971 Soviet mission failed shortly after landing). It's considered a major achievement for Beijing's space program, which is growing more and more ambitious. Zhurong will soon be deployed from the lander for a three-month mission, joining the aforementioned operational NASA rovers. So, what will it be doing? CNN and The Associated Press report that it will be searching for signs of ancient life, but the mission appears to be a little more specific than that. The Scientific American reports that Zhurong's landing site, Utopia Planitia, is "a rather bland expanse of rock-strewn sand," a good spot for a touchdown, but "decidedly sub-par for addressing cutting-edge research questions, such as whether Mars harbors past or present life." That said, the mission should come in handy, Agnes Cousin, a planetary scientist at the Institute for Research and in Astrophysics and Planetology in France, told The Scientific American. "For the overall geological implications for Mars, it’s very nice to have a new location to compare," she said. Among other things, Zhurong is equipped with the first magnetometer sent to Mars, which reportedly could possibly reveal details of how Mars lost its magnetic field and, subsequently, its atmosphere and water billions of years ago. Read more at The Scientific American and The South China Morning Post. More stories from theweek.com7 scathingly funny cartoons about Liz Cheney's ousterThe Wuhan lab-leak hypothesis deserves relentless investigatingThere's growing speculation that Meghan Markle and Prince Harry will name their daughter 'Philippa'
A U.K. climate scientist has created a map showing the relative warming of surface temperatures as compared to other parts of Earth, and it reveals an environment out of balance. CBS News meteorologist and climate specialist Jeff Berardelli joins CBSN to explain.
Barely a week has passed since SpaceX successfully launched, and landed, its prototype Starship rocket SN15 in far Southwest Texas, its first unqualified success with the launch vehicle. SpaceX Starship MK1: the Starship that started it all. In a Thursday filing with the Federal Communications Commission, which has jurisdiction over rocket launches, SpaceX outlined its plans for a first launch of its Starship Orbital rocket variant.
All people have prejudices, but learning more about them could help keep them in check. Crowd image via www.shutterstock.com.Humans are highly social creatures. Our brains have evolved to allow us to survive and thrive in complex social environments. Accordingly, the behaviors and emotions that help us navigate our social sphere are entrenched in networks of neurons within our brains. Social motivations, such as the desire to be a member of a group or to compete with others, are among the most basic human drives. In fact, our brains are able to assess “in-group” (us) and “out-group” (them) membership within a fraction of a second. This ability, once necessary for our survival, has largely become a detriment to society. Understanding the neural network controlling these impulses, and those that temper them, may shed light on how to resolve social injustices that plague our world. Our brains can almost instantly assess in-group or out-group status. Daniela Hartmann, CC BY-NC-SA Prejudice in the brain In social psychology, prejudice is defined as an attitude toward a person on the basis of his or her group membership. Prejudice evolved in humans because at one time it helped us avoid real danger. At its core, prejudice is simply an association of a sensory cue (e.g., a snake in the grass, the growling of a wolf) to an innate behavioral response (e.g., fight-and-flight). In dangerous situations time is of the essence, and so human beings adapted mechanisms to respond quickly to visual cues that our brains deem dangerous without our conscious awareness. The rub in all of this is that our brains have inherited the tendency to erroneously deem something dangerous when it is in fact benign. It is safer to make false-positive assumptions (avoid something that was good), than to make false-negative assumptions (not avoid something that was bad). Neuroscience has begun to tease out the neural underpinnings of prejudice in the human brain. We now know that prejudiced behavior is controlled through a complex neural pathway consisting of cortical and sub-cortical regions. A brain structure called the amygdala is the seat of classical fear conditioning and emotion in the brain. Psychological research has consistently supported the role of fear in prejudiced behavior. For this reason, the vast majority of brain research on this topic has focused on the amygdala and the cortical regions that influence it. Focus on the amygdala In one study by Jaclyn Ronquillo and her colleagues, eleven young, white males underwent functional magnetic resonance imaging (fMRI) while being shown photographs of faces with varied skin tones. When they viewed black faces, it resulted in greater amygdala activity than when they viewed white faces. Amygdala activation was equal for light and dark black faces, but dark-skinned white people had greater activation than those with lighter skin tone. The authors concluded that Afrocentric features drove an unconscious fear response in white participants. Darker faces elicited more amygdala activity when white subjects were fMRI scannned. The effect of skin tone on race-related amygdala activity: an fMRI investigation, Ronquillo (2007), Author provided More recent imaging research has supported the intractable nature of prejudice in the human psyche. Chad Forbes and colleagues found that even self-reported non-prejudiced subjects could be prejudiced in some situations. White study subjects had increased amygdala activation while viewing images of black faces when they were listening to violent, misogynistic rap music, but not when listening to death metal or no music. Interestingly, they found that a region of the frontal cortex – an area of the brain expected to tamp down amygdala activation – was also activated. The researchers speculated that the music reinforced a negative stereotype about black subjects, creating a situation in which the white subjects were not able to temper their prejudiced emotions. In fact, the authors speculated that the frontal cortices – generally thought of as areas of “higher” brain function – were instead recruited to help justify the feelings of prejudice felt by the participants listening to rap music. Other research has shown that the amygdala response to out-group faces is not strictly bound to characteristics such as race. The amygdala responds to any out-group category, depending on whatever someone deems is salient information: your sports team affiliation, gender, sexual orientation, where you go to school, and so on. Brains can control bias too The Forbes et al study highlights that our ability to control reactionary implicit bias is dependent on the frontal cortices of the brain. A particularly important region of the cortex is the medial prefrontal cortex (mPFC). The mPFC is the seat of empathy in the brain. It forms impressions about other people and helps us consider other perspectives. A lack of mPFC activity is associated with prejudice marked by dehumanization and objectification of others. For example, it is known that mPFC activation increases when we view a person of high esteem or prestige – for example, firefighters or astronauts – but not when we view someone marked with disregard or disgust, such as a drug addict or homeless person. Men with highly sexist attitudes have less mPFC activity when viewing sexual images of female bodies. These men also believed sexualized women have “less control over their own lives.” Taken together, it seems that though the frontal cortices are able to reduce our innate prejudices about certain people, they are greatly influenced by context. In other words, our desire to not be prejudiced may sometimes get trumped by exposure to media supporting stereotypical portrayals of certain groups. Moving forward, it is essential to take into account not only the neural architecture of prejudice, but also the context in which we humans live. Babies aren’t born with prejudices. Babies image via www.shutterstock.com. Current questions being addressed in this field of research include whether or not amygdala activation in response to those of other races is something we’re born doing or a learned phenomenon. So far, research suggests that amygdala activity in response to out-group members is not innate, and develops later in adolescence. Also, studies support the notion that childhood exposure to diversity can reduce the salience of race in adulthood. In today’s world people are more connected than ever – from social media to Skype, to the never-ending news cycle – people are exposed to increasing diversity. Due to these advances, we as a global community are also faced with the knowledge that prejudice-based discrimination and violence still exist. It’s become a human imperative to transcend divisive impulses which no longer serve our survival. Neuroscience has started to educate us about innate human drives. It’s now up to all of us how to use this information.This article is republished from The Conversation, a nonprofit news site dedicated to sharing ideas from academic experts. Read more:New teachers face complex cultural challenges – the stories of 3 Latina teachers in their toughest momentsRacism in football: new research shows media treats black men differently to white menDenying Black musicians their royalties has a history emerging out of slavery Caitlin Millett does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
China has successfully landed a rover on Mars, joining the U.S. and the former Soviet Union as the only other countries to land on the red planet. CBSN contributor Isaac Stone Fish, the founder of Strategy Risks, spoke with Lana Zak about what this means for the future of space exploration.
China's Mars mission has successfully reached the planet's surface.
A chunk of priceless space rock that fell on the UK will showcase at the Natural History Museum.