The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything ... a clearer picture of how the outer solar system formed and evolved based on ...

Early 2025 is a good time for skygazing and spotting up to seven planets in the night sky – if you have a little help.

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

The building blocks of life could have been delivered to Ceres by one or more space rocks from the outer asteroid belt.

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...