There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called ...

Comet C/2025 V1 (Borisov), discovered by an amateur astronomer, is captivating scientists. Its unusual orbit initially ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But ...

Venture to the most distant worlds in our solar system as we chart the path to Uranus, Neptune, and Pluto. Learn about ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

A nearby star has just been caught throwing a tantrum – and it could rewrite what we know about the potential for life in the ...

If you've ever wondered why we are here, then you can thank Jupiter for part of the answer. A new study from Rice University ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

Researchers analyzed nearly half a million nearby star systems to understand how giant planets fare as their stars expand ...