Space

Voyager 1, launched in 1977, is now so far from Earth that a radio signal travelling at the…

Rocket Lab (NASDAQ: RKLB), a developer of reusable orbital rockets, recently agreed to acquire Iridium (NASDAQ: IRDM), a…

Ask how many Earth-like planets there are, and the honest answer is that serious researchers give estimates spanning…

The Swift Observatory was launched in 2004, but recent solar storms have pushed its orbit lower, and it’s…

Happy Fourth of July, Space Fans! As the United States celebrates its 250th birthday, we here at Space.com…

The passing of a comet from another star system gives scientists an opportunity to peer back into ancient…

Astronomers have detected light from a tiny but powerful galaxy that existed when the universe was still emerging…

Out of all the planets in the solar system, Earth is held at the highest prominence. It’s consistent…

Humanity has likely dreamed of flight since the very beginning, marveling at birds soaring overhead and trying to…

The bootprints that Apollo astronauts pressed into the lunar dust between 1969 and 1972 are still there, and…

What did the evening sky look like for Benjamin Franklin, Thomas Jefferson, and their contemporaries on July 4,…

This week’s science news was all about goings on in space, with reports that the James Webb Space…

The Voyager 1 probe, launched in 1977, is now so far from Earth that a radio signal travelling at the speed of light takes over 22 hours to reach it, and it is still sending data back from interstellar space on a power source the size of a car battery