It took two years for NASA's OSIRIS-REx space probe to return from asteroid Bennu before dropping off a small capsule as it ...

Material retrieved from the asteroid Bennu by NASA’s OSIRIS-REx spacecraft shows that all the basic building blocks of life ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars and Jupiter would be best to see through a telescope right now. Mars is the ...

Through the end of February, all the planets in our solar system will visibly align in the sky, like a trope taken straight ...

Venus, Mars, and even Jupiter were visited decades ago. So why did it take so long for a mission to reach Mercury? 🌞 This video explores the surprising obstacles that make this tiny planet one of the ...

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

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

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

While planets circle the sun in what's called a heliocentric orbit, they rarely fall together in what appears to the human eye as somewhat of a line across the visible horizon. Saturday is one of ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special ...