When visualizing the Snapchat Solar System, imagine yourself as the sun ... person on the list has an Earth badge, and so on.

Astronomers have long suspected that there was at least one exoplanet orbiting Barnard's Star — a red dwarf with a mass ...

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

Narrator: As the solar system grew, four rocky planets: Mercury, Venus, Earth and Mars, were created closest to the Sun. Made of rocks and metals, they have solid surfaces and a central core of ...

"We can push our model further and use it to make predictions about the types of planets expected at Earth-sun equivalent distances -- regions currently beyond the reach of observations," Izidoro ...

Narrator: Further from the Sun, in the outer reaches of the solar system, we find the gas planets. Much larger than the rocky planets, these cosmic giants are accompanied by numerous moons.