Researchers estimate that the number of captured free-floating planets in the outer solar system with mass strictly greater than that of Mars is ∼1.2 and that the number of such planets with a strict ...

Mass colonization of Mars will require advanced space capabilities. There will need to be hundreds or even thousands of fully reusable SpaceX BFR. A study that shows that Terraforming Mars needs to go ...

What tests can be performed on Earth to help us find signs of ancient life on Mars? This is what a recent study published in Frontiers in Astronomy and Space Sciences hopes to address as a team of ...

A long-ago inward migration by Jupiter during the formation of our solar system could explain why Mars is small in relation to Earth and Venus, according to a paper published in Nature. Researchers ...

Elon Musk and Jack Ma can’t agree on one of the big questions about the future: Is it worth sending humans to Mars? “I think it’s important for us to take the set of actions that are most likely to ...

Radio-wave data from NASA's InSight mission has provided the most precise measurement of Mars' rotation rate ever made. When you purchase through links on our site, we may earn an affiliate commission ...

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based ...