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 ...

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

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

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 ...

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

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

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

Caribbean sounds help bring the Solar System to life and make space education more inclusive.

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...