The surface and atmosphere is colored by ferric oxides. Beneath a very thin layer, mere millimeters deep in places, it's not red anymore.
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One book will gather all topics on the search for life in the Cosmos.
"You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it."
This oddball system of three stars might be our best chance at finding nearby life in the Universe.
From astrobiology to geology, a Moon base could serve as a laboratory unlike anything on Earth.
There's an entire Universe out there. So, with all that space, all those planets, and all those chances at life, why do we all live here?
Looking back on our planet's early history offers a new (and less crazy) meaning for the idea of a "flat Earth."
The first human that isn’t an Earthling could be in our lifetime.
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Whether you call it 10 quintillion, 10 million trillion, or 10 billion billion, it's a 1 followed by 19 zeroes.
The cycles of life all rely on the dynamism of the Earth's crust.
Like Mars today, Venus used to be a sci-fi superstar. Recent discoveries could re-ignite our interest in Earth’s “evil twin.”
The first world that humans should inhabit beyond the Earth is the Moon, not Mars. Here's why terraforming our lunar neighbor is so appealing.
Space missions in 2022 will include massive rockets and asteroid collisions. This is also the year space tourism starts to hit its stride.
Mercury, Venus, and Mars are all uni-plate planets, and may always have been. Here's what's known about why Earth, uniquely, has plate tectonics.
Phobos and Deimos only have two explanations, and neither one adds up.
Theoretically, we know what happened on the red planet. Here’s how we’ll find out whether we’re right. When it comes to the worlds beyond Earth in our Solar System, it’s only […]
We are likely to see the first humans walk on Mars this decade.
What lies in store for humanity? Theoretical physicist Michio Kaku explains how different life will be for your descendants—and maybe your future self, if the timing works out.
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It could analyze a photo of the Martian surface in just five seconds. NASA scientists need 40 minutes.
The massive craft could carry 100 humans to Mars and revolutionize space exploration.
As we look to larger cosmic scales, we get a broader view of the expansive cosmic forest, eventually revealing the grandest views of all.
Why can’t more rainwater be collected for the long, dry spring and summer when it’s needed?
Its implications go well beyond the Earth itself, affecting even the future of space travel.
We are traveling in a realm that once exclusively belonged to the gods. Space travel will force humanity to rethink everything.
Recent research suggests that Earth’s magnetic field bounced back just as complex life was starting to emerge on our planet.
Research from NASA reveals Mars’ spectacular volcanic past.
JWST just found its first transiting exoplanet, and it's 99% the size of Earth. But with no atmosphere seen, perhaps air is truly rare.
If aliens are driven mostly by biological imperatives, humanity could be in big trouble if we ever meet technologically advanced beings.
Purely physical and chemical processes can deceive us into thinking that life is present, when it actually is not.
Multiple lines of evidence — physical, chemical, and biological — must converge for scientists to conclude that alien life has been found.