Sun
Sun news update: Sun-stuff blast brings severe storms
Earth's geomagnetic field was disturbed to G4 (severe) storm levels overnight following the arrival of the CME from Sunday's X flare. Did you catch any auroras?
Space
New survey of nearest stars reveals best spots for life
A new survey of nearest stars to the sun - more than 2,000 of them - is helping astronomers determine which ones are the most likely to have habitable planets.
Clusters Nebulae Galaxies

Meet the Crab nebula, remnant of an exploding star

The Crab nebula is visible with binoculars or small telescopes. Scan near bright stars in Taurus to spot this expanding stellar remnant.
Earth

The elephant shrew is a long-snouted speedster

The elephant shrew is a small but clever creature. It survives using speed, memory and keen senses in a world where predators lurk at every turn.
Astronomy Essentials
Tonight

Visible planets and night sky guide for January

Visible planets and night sky guide. This evening, look for the thin moon. It’ll be especially beautiful during twilight, set against soft sunset colors.
Spaceflight

Artemis 2 rocket rollout! We’re poised to go to the moon

NASA rolled out Artemis 2 to Launch Pad 39B on January 17, 2026. The next mission to the moon will launch no earlier than February 6.
Tonight

The best comets of 2026: Here’s what to watch for

What will be the best comets of 2026? Here's a list of those we already know, and keep watching this space for new discoveries!
Astronomy Essentials
Space

Here’s what ‘habitable’ means to astronomers

When astronomers say a distant world is 'habitable,' what do they mean? Do they mean humans could live there? Do they mean we've discovered alien life?
Earth

See lightning forms from the traditional to bizarre

Beyond bolts, there are many lightning forms that you might see, including red sprites, blue jets and more. Read about them and see examples here.
Space

Do aliens and fireflies communicate similarly?

Advanced aliens and fireflies on Earth might communicate in similar ways, by using signals of flashing light, a new theoretical study suggests.