Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Is 3I/ATLAS a natural comet or an alien probe? Harvard's Avi Loeb explores the mystery of its sunward 'anti-tail' and what it ...

As the year draws to a close, we take a look at some of the biggest science stories of the year, and why they matter.

When astronomers first cataloged some of the closest orbiting rocky exoplanets, they wrote them off as bare, airless cinders, ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

The key idea behind our framework is that life produces molecules with purpose, while nonliving chemistry does not. Cells ...

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

When we talked about searching for life on Europa, we didn't mean making the place a nightmare for arachnophobes.

A strange world just 47 light-years from Earth is rewriting what scientists thought they knew about alien planets. Hidden ...

Hubble reveals a mysterious 'controlled' jet system on 3I/ATLAS. Is this 130,000mph interstellar visitor a natural comet or ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...