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 ...

Editor's note: This article was updated March 25 at 11:40 a.m. ET to account for the recent discovery of new moons around Saturn and Jupiter. The total number of planetary moons and small-body ...

The scientific wonderers at What If rearrange our neighborhood to see how a crowded habitable zone would affect the orbits and climates of every world. US Senate passes Homeland Security deal Iran’s ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have ...

Exoplanet L98-59d, located far beyond our solar system, might not sound like someone’s dream destination. It likely has an underground ocean of magma, a surface temperature that reaches around 3,500 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

As they traveled back toward Earth following a solar eclipse and a communications blackout, President Trump called the space ...

The world has tracked the journey of NASA’s Artemis II mission for five days. The four astronauts have launched into space, ...

One of the crew say they have seen "sights that no human has ever seen" after travelling beyond the far side of the Moon.

NASA's Artemis II astronauts swung around the moon in their Orion spacecraft on Monday, coming within 4,067 miles of the ...

When it comes to sci-fi, no streamer has done the genre more justice than Apple TV. With a plethora of different subgenres, from space epics to post-apocalyptic thrillers, there's something for every ...

Planets around other stars can help answer one of the greatest mysteries: How did we get here? How did the spinning disk of material left behind by our sun’s birth form our planet and its seven ...