While Mars today only has a wispy remnant of an atmosphere, it may once have had one hundreds of times thicker with a ...

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's ...

NASA’s Perseverance rover has recently discovered the biosignature, revealing the possibility of ancient life that once ...

Harvard astronomer Avi Loeb argued interstellar object 3I/ATLAS "could either visit us or release some mini-probes that ...

On Mars, things are a lot more static. It’s a single-plate planet with incredibly slow mixing. When InSight peered into the ...

Astronomers simply can't shake the feeling that there's something really off about interstellar object 3I/ATLAS. The mysterious entity, which was first spotted hurtling towards the Sun in early July, ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

Until recently, we could only study geology by looking at rocks on Earth and the Moon —well, and the rare meteor or two that ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

New images reveal interstellar comet 3I/ATLAS beginning to grow a signature tail as it zooms closer to the sun ahead of a ...

Seismic data collected by the NASA Insight lander point to huge foreign objects lodged in the mantle of Mars from billions of ...