Kepler was one of the most successful exoplanet-hunting missions so far. It discovered 2,600 confirmed exoplanets—almost half ...

The newly discovered planet, named Kepler-51e, was revealed through subtle yet telling anomalies in the transit of one of the system’s previously known planets.This detection adds a new layer of ...

Illustration of the Kepler-51 system and its inner three planets, which have unusually low density. New observations from NASA's James Webb Space Telescope suggest that at least one more planet is ...

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

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

The central star of the Kepler-385 system closely resembles our Sun but is about 10% larger and 5% hotter. Among its seven planets, the two innermost ones, only slightly larger than Earth ...

For astronomy lovers, and for the general public, this January 21 will be one of those planetary alignments that is ...

There are two odd gaps in our solar system: the gap in size between ... within the habitable zone of the star Kepler-62, the outermost of five such planets discovered by NASA's Kepler spacecraft.

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