Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

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

Astronomers have made a groundbreaking discovery in the WASP-132 system, finding two new planets that defy previous ...

In October 2020, a van-sized robotic spacecraft briefly touched down on the surface of Bennu, a 525-meter-wide asteroid 320 ...

A shortcut for New Yorkers to spot some of the planets is to look for them when they are near the moon. On Feb. 1, Venus will ...

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

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Helium can help scientists detect the speed and direction at which we’re moving through space. Deuterium, which is left over ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

An object we thought belonged to the most common category of planet in the galaxy has turned out to be ... because we have nothing directly analogous to them here in our Solar System. Both ...