A new program has discovered chaos in a nearby planetary system, which could explain the existence of a phenomenon ...

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

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

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

TRAPPIST-1, a planetary system 40 light years from Earth, could host a planet with an atmosphere and liquid water, but astronomers can’t be certain just yet.

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

TRAPPIST-1e shows no signs of its first atmosphere, but hints of a secondary one remain. Liquid water could still be possible ...

In this latest data mining, scientists unexpectedly discovered two planets with extremely unusual orbits, whose trajectories differ dramatically from the known patterns of planetary orbits. In our ...

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

Exoplanet TRAPPIST-1 e may contain an atmosphere and liquid water, NASA scientists said. Research into the exoplanet is ...

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.

This illustration shows an exoplanet orbiting around two brown dwarfs –– objects bigger than gas-giant planets but too small to be proper stars. ESO/M. Kornmesser Astronomers have discovered a ...