Parker Solar Probe Makes History by Touching the Sun 8 million miles above the Sun's surface on December 24, 2024, traveling ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

The comet 3I/ATLAS is taking a long holiday journey this year. It’s visiting from another solar system altogether. Those ...

Elisha Sauers writes about space for Mashable, taking deep dives into NASA's moon and Mars missions, chatting up astronauts ...

Our solar system is only one out of hundreds of stellar systems residing in the Milky Way galaxy. It’s comprised of the Sun and eight known planets, half of which are Terrestrial (sporting solid, ...

A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How to Die in Space." Sutter contributed this article to ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

A compilation of unexpected facts about the planets in our solar system. Photo courtesy of NASA Despite being the second planet from the sun, Venus' atmospheric thickness and composition make its ...