Mercury, the closest planet to the Sun, is a world of extremes and unanswered questions. Though it resembles the Moon with its cratered surface, Mercury is far from ordinary. It’s the smallest planet ...

SYFY ’s The Ark follows the crew of an interstellar spacecraft on a multi-light-year journey to the star next door. In the ...

Newly released imagery from NASA shows the Sun's corona in stunning detail after the Parker Solar probe performed its closest ...

Proxima Centauri, just 4.24 light-years from Earth, is the closest known star to our Sun. Though it’s the smallest member of ...

Mercury is a mysterious world. As the closest planet to the sun, it’s a hard-to-reach destination for space missions. So far, only two have made it to Mercury—NASA’s Mariner 10 and MESSENGER ...

Have you ever wondered how long it would take to travel to each of the planets in our solar system? The distances between ...

The universe beyond our Solar System is vast and filled with mysteries, and some of its most fascinating secrets lie just beyond our cosmic doorstep. While the Sun is the closest star to Earth, it's ...

Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...