Space
Is our whole universe spinning? A new study suggests it is
Is the universe spinning like our Earth, solar system and galaxy? If so, it may help resolve a puzzle surrounding the expansion of the universe.
Earth
Space
Most meteorites that hit Earth aren’t typical. Why?
Observations and sample-return missions show us that space rocks tend to be rich in water, carbon and organic compounds. Yet meteorites on Earth are not. Why?
Earth
Sun

Sun news: Huge geomagnetic storm brings auroras galore!

Sun news April 17, 2025. A cannibal CME disturbed Earth's geomagnetic field last night, causing up to G4 (severe) geomagnetic storming and beautiful auroras.
Astronomy Essentials
Tonight

Visible planets and night sky guide for April

Visible planets and night sky guide. Tomorrow, the gibbous moon hangs near the Teapot, a pattern of stars in the constellation Sagittarius.
Astronomy Essentials

Easter and Eastern Orthodox Easter are on April 20

In 2025, Easter falls on April 20. It falls on the first Sunday after the first full moon after the March equinox. More about the date of Easter, here.
Space

Rare Tatooine world has a weird orbit around brown dwarfs

Astronomers have discovered a Tatooine world that orbits 2 brown dwarfs (failed stars). But strangely, the planet orbits the brown dwarfs at a 90 degree angle.
Space

Large Magellanic Cloud is ripping apart its smaller neighbor

Data from the Gaia observatory show that the Large Magellanic Cloud is ripping apart its smaller neighbor, the Small Magellanic Cloud.
Space

Meet the new Comet SWAN! See it in binoculars now

The new Comet SWAN is approaching the sun and you can currently see it with binoculars in the morning sky. Keep track of its progress here.
Brightest Stars

Alpha Centauri, the star system closest to our sun

Our closest stellar neighbors are the 3 stars that are the Alpha Centauri system. They lie just over 4 light-years away from us.
Today's Image

Watch a sungrazing comet’s final death leap

The sungrazing comet appears as a relatively bright and slow-moving dot, heading toward the sun, then suddenly fading away.

2025 Donation Campaign

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