Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

An international team led by the University of Geneva (UNIGE), including scientists from the National Center of Competence in ...

By 2015, NASA announced that Kepler had discovered its 1,000th exoplanet. 2016 was a banner year for exoplanet detections with nearly 1,500 in that year alone. The total number reached 5,000 in March ...

Astronomers were fascinated after spotting an object from interstellar space hurtling through the solar system earlier this ...

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth's orbit came from.

As atmospheric observations of exoplanets become increasingly precise, it is more important than ever to correctly account ...

The milestone highlights the accelerating rate of discoveries, just over three decades since the first exoplanets were found.

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

The coldest planet in the Solar System is Uranus, which is surprisingly colder than Neptune due to its unique internal heat ...