The Artemis II mission, which took four US astronauts around the Moon and to a record-breaking distance from Earth, was a ...

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...

A 15-Jupiter-mass object circling a star about 133 light-years away has given astronomers their clearest chemical evidence ...

The Artemis II mission sent back beautiful images of the Moon and Earth, and we feature one of them this week, plus amazing ...

Stargazers will soon have an opportunity to view six planets in alignment in the night sky, according to NASA. Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will take part in a rare planetary ...

(CNN) — Sky-gazers will have the opportunity to see six planets in the sky on Saturday, weather permitting, according to NASA. This planetary parade occurs due to the alignment of the planets’ orbits ...

A fourth grader in Florida isn't the only one who's been thinking about restoring the ninth planet.

Pluto was downgraded from a planet to a dwarf planet in 2006 by the International Astronomical Union. NASA Administrator Jared Isaacman has stated his support for President Trump to take action to ...

Add Yahoo as a preferred source to see more of our stories on Google. Stockton LaSalle uses a telescope to view the moon while the “Great Conjunction” of Saturn and Jupiter is visible in the top left ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...