A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

The findings could more than double our current database of worlds that loop around binary star systems. But researchers need ...

It’s not every day you get a chance to spot multiple planets with the naked eye—but this month, you can. Venus and Mercury are both visible in the sky, offering a rare glimpse ...

If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.

The celestial body’s status as the solar system's ninth planet was withdrawn in 2006. Now some experts say we might want to ...

Rogue planets sound like rare travelers among the stars, freed from the gravitational constraints of a host system, left to ...

A new solar telescope at Paranal studies the Sun to reduce stellar noise, helping scientists better detect and study ...

Beyond the known planets lies a vast and mysterious frontier. This video explores dwarf planets, icy comets, and countless ...

These images, taken with the European Southern Observatory's Very Large Telescope (VLT) shows a planetary system being born around the young star WISPIT 2. The star is surrounded by a disc of gas and ...