A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

One part of this plan would require increasing the planet’s atmospheric pressure, and one scientist suggests that capturing ...

How can we successfully collect and return samples from Mercury and Venus to Earth? This is what a recent study presented at ...

A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is ...

Some peas-in-a-pod systems also have outer planets like our solar system. Deciding on a rule to designate inner and outer regions wasn’t easy, but the team classified outer planets as those that ...

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

The two exoplanets, or planets outside of our solar system, orbit a star called TOI ... meaning that for every three orbits of the inner planet, the outer planet completes almost exactly two.