ESA's Gaia spacecraft has now ended its operations, after measuring some 2 billion Milky Way objects. A new animation shows some of its greatest new insights.
Visible planets and night sky guide for January 2025. Tonight, look for the last quarter moon. It’ll rise after midnight your local time and set around noon.
Sun news for January 21, 2025. An M3.4 flare and erupting filament from AR3967 have kicked sun activity up to moderate levels. A CME might be on its way.
Social media behemoth Meta is planning to use crowdsourced 'community notes' for factchecking. Some experts worry this will only increase online polarization.
NASA's Webb Space Telescope has taken stunning new images of a binary star's dusty rings. The rings of Wolf-Rayet 140 are expanding at 1% the speed of light.
Orion the Hunter is one of the easiest constellations to identify thanks to Orion's Belt, the 3 medium-bright stars in a short, straight row at his waist.