Space
Farewell, Gaia! Now check out this animation
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.
Today's Image
Leo P and a host of other galaxies
Researchers used the Webb Space Telescope to reveal patterns of star formation in a dwarf galaxy, Leo P. The image captured many other galaxies too.
Space

Andromeda galaxy: Hubble’s largest photomosaic yet

Astronomers have created the largest photomosaic of the Andromeda galaxy yet using Hubble data. The image helps trace the hidden history of Andromeda.
Astronomy Essentials
Tonight

Visible planets and night sky guide for January

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.
Earth
Sun

Sun news: Beautiful flare and filament explosion

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.
Tonight

Is super-bright Comet ATLAS G3 disintegrating?

Comet ATLAS G3 might be the brightest comet of 2025. It's wowed Southern Hemisphere viewers. But new reports say it might be starting to disintegrate.
Human World

Is social media polarization about to get worse?

Social media behemoth Meta is planning to use crowdsourced 'community notes' for factchecking. Some experts worry this will only increase online polarization.
Space

Wow! Binary star’s dusty rings shine in new Webb images

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.
Human World
Space

Do aliens exist? What scientists really think

Aliens probably exist according to a survey of more than 1,000 scientists. Nearly 87% of them believe in extraterrestrial life.
Tonight

Orion the Hunter is easy to spot in January

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.