Sun
Sun news: Partial halo CME heads our way for a glancing blow
Sun news for April 22, 2026: A partial halo CME may glance Earth on April 24. AR4420 fires 18 flares. Three newcomers join the solar disk.
Earth
A pileus cloud means bad weather is on the way
A pileus cloud looks like a curved, white cap on the top of a towering cumulus cloud. Pileus clouds are a sign that bad weather is on the way.
Astronomy Essentials

The Lyrid meteor shower peaks tonight. Don’t miss it!

The best time to watch the Lyrid meteor shower is before dawn on the morning of April 22. You'll have a dark and moonless sky. Good luck!
Astronomy Essentials

Meteor showers are here! 10 easy tips for watching

Meteor showers are unpredictable but nothing beats them for a fun and relaxing time under the stars. Here are our 10 tips to optimize your meteor viewing time.
Astronomy Essentials
Tonight

Visible planets and night sky guide for April and May

Visible planets and night sky guide. This evening, look for the moon near bright Jupiter and the twin stars of Gemini. And don't miss the Lyrid meteor shower!
Astronomy Essentials
Clusters Nebulae Galaxies

Meet M13, the Great Globular Cluster in Hercules

Many stargazers call it the finest globular cluster in the northern half of the heavens. It's M13, also known as the Great Globular Cluster in Hercules.
Earth

Small ants clean larger ants in a surprising twist of nature

Small ants clean larger ants, a researcher has discovered. It's the first known case of interspecies grooming between ants.
Space

Can we find alien life in groups of similar planets?

A new study from Japan suggests we could search for a sign of alien life by looking for suspiciously similar planets close together.
Space

Do Newton and Einstein’s laws of gravity hold across the cosmos?

Newton and Einstein's laws of gravity hold true across the largest structures in the universe. This new evidence strengthens the case for dark matter.
Space

Simulating how black holes light up the dark

When black holes tear apart stars, the wreckage heats up, creating brilliant flares. New simulations are showing these flares with more detail than ever before.

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