Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new exoplanet orbiting a bright K-type star known as TOI-283. The newfound alien world, ...

Where will we first find life beyond Earth? This is what a recent study published in The Astronomical Journal hopes to ...

A team of researchers has demonstrated a new way in which sub-Neptune-sized exoplanets could produce a great deal of water.

Our search for exoplanets is focused on Milky Way stars. It's been successful, with more than 6,000 detected so far.

Scientists have long assumed that, like rocky planets such as Earth, sub-Neptunes begin with molten magma oceans. Their thick ...

In the search for extraterrestrial life, the presence of water is a key signature of possible habitability. Identifying why ...

As far as we know Neptune is the furthest full-size planet in our Solar System, orbiting the Sun some 2.69 billion miles away. But that doesn’t mean astronomers aren’t keeping a close eye on it and ...

When Galileo pointed his telescope at Saturn and Jupiter, he had just discovered the nature of two giant planets. Later came Uranus and Neptune, two more gas giants. Since then, astronomers have ...

This artist’s concept shows the volatile red dwarf star TRAPPIST-1 and its four most closely orbiting planets, all of which ...

A team of international astronomers, led by Turkish doctoral student Selçuk Yalçınkaya, has unveiled four new exoplanets – ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

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