A rare full seven-planet alignment will be visible in the early night sky between Feb. 22 and 28. We have the tips you need ...

Clear your calendars for February 28, 2025, because something extraordinary is about to happen in the sky– something you’ll ...

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

Earth, captured once a day by the EUMETSAT meteorological satellite, have been time-lapsed. (video looped) Credit: Simon Proud / NCEO / EUMETSAT ...