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

The enchanting dunescape stretches over 43 miles (70 km) along the coast and over 30 miles (50 km) inland. Lençois translates ...

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

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

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

Two papers showed these intriguing signals, but the team stresses that there are currently many uncertainties to confirming ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

The different speeds of the planets mean that ... a star from our point of view it dims the star's light, allowing its size and orbit to be discerned. Thanks to this method, we have discovered ...

The data used to create the image is from a Hubble Space Telescope project to capture and map Jupiter's superstorm system.

redefining our brand strategy and pulling it through our marketing to leverage our size, scale and industry leadership,” said Planet Fitness CEO Colleen Keating in a statement. Povinelli was described ...

An object we thought belonged to the most common category of planet in the galaxy has turned ... So-called mini-Neptunes can be of a similar size, but their composition is significantly different, ...