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Space
Euclid Space Warps: Help spot galaxies bending spacetime!
New citizen science project Space Warps lets you study new Euclid space telescope data to find galaxies bending the fabric of the universe.
April 29, 2026
Astronomy Essentials
What is a micromoon? We have 2 coming in May
What is a micromoon? It's a full or new moon near its farthest from Earth for the month. Depending on your definition, 2026 has either 2 or 3 full micromoons.
April 29, 2026
Human World
Could paranormal experiences be due to low-frequency sound?
Research shows people can't hear sounds at very low frequencies, yet they still respond to them. Could these sounds explain paranormal experiences?
April 29, 2026
Sun
Sun news: Activity surges with 3 M flares!
Sun news for April 29, 2026: Sun activity picks up with 3 M flares in a row alongside another 20 C flares. Sunspot AR4420 is firing on all cylinders.
April 29, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for April and May
Visible planets and night sky guide. This evening, the gibbous moon hangs near Spica, the brightest star in Virgo the Maiden. We'll see a full moon on May 1.
April 29, 2026
Space
Ancient lake on Mars? Rover finds strong new evidence
NASA's Curiosity rover has found yet more evidence for an ancient lake on Mars. Metallic minerals in preserved rock ripples provide the clues.
April 28, 2026
Earth
Human World
Save the Frogs Day is today, Tuesday, April 28
Save the Frogs Day - a global amphibian conservation effort - is today, Tuesday, April 28, 2026. Amphibian health is an important marker of ecosystem quality.
April 28, 2026
Earth
The biggest US supervolcanoes you’ve never heard of
Two of the biggest US supervolcanoes erupted millions of years ago, and you’ve probably never heard of them: Wah Wah Springs and La Garita.
April 28, 2026
Space
Jan Oort birthday and discovery of the Oort Cloud
Dutch astronomer Jan Oort was born on April 28, 1900. He visualized a vast reservoir of icy comets on the fringes of our Solar System, which now bears his name.
April 28, 2026
Earth
Severe weather outbreak today for Midwest
See the areas under threat of severe weather Monday here. Stay up to date with your local forecast and have multiple ways to receive vital weather warnings.
April 27, 2026
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