WASHINGTON (AP) — As the fate of TikTok hangs in the balance, U.S. TikTok users are flocking to the Chinese social media app ...

In January, stargazers will be able to see four bright planets, the close dance of Venus and Saturn, Mars at opposition, and ...

This NASA Hubble Space Telescope image shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released on ...

The joint European-Japanese mission is only the second survey of Mercury, the least explored planet in the inner solar system ...

Some space conspiracy theories just won't go away.

Six planets grace the sky this month in what’s called a planetary parade. Venus, Mars, Jupiter and Saturn are visible to the naked eye in January and for part of February.

A mysterious airstrip being built on a remote island in Yemen is nearing completion, according to satellite photos analyzed by The Associated Press ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

These are the planets that will be visible with the naked eye. A rare parade of planets will light up the night sky ...

Speaking from the Oval Office as he prepares to hand over power Monday to President-elect Donald Trump, Biden sounded alarm ...

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...