January 8 marks Earth Rotation Day, a lesser-known but scientifically significant day that celebrates the rotation of our planet on its axis. This fundamental phenomen ...

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he ...

Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant ...

"There are plenty of astronomy apps for mobile phones to guide your viewing, but be aware that they can destroy or diminish ...

But later – hundreds of millions of years in the future – a permanent, virtually ringless Saturn will become real, thanks to ...

It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when several of our solar system's planets are visible in the night sky at ...

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form. When you purchase through links on our site, we may earn an affiliate commission.

Want to see Mars at its brightest in January? The best telescopes for seeing planets give you the clearest views of our celestial neighbors. The new year is a great time to test out your ...

Navigation and Geolocation Systems such as GPS and Galileo offer location services ... during long journeys and on the surface of other planets. Mars Missions: SpaceX is engaged in the ...

In 2003, Hubble provided evidence of a massive planet around a very old star, almost as old as the universe. Such stars possess only small amounts of heavier elements that are the building blocks of ...