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EarthSky Voices

When the asteroid killed the dinosaurs: Blow-by-blow account

What happened when the asteroid killed the dinosaurs some 66 million years ago? Read a blow-by-blow account of what the dinosaurs underwent.
Earth

Do birds have accents? Regional differences in birdsong

Do birds have accents? Yes. From individual to geographical variation, here's why birds of the same species don't always sound the same.

2025 Alaska megatsunami shows need for warning system

A 2025 Alaska megatsunami sent a 1,580-foot wave of water up a fjord. It revealed the need for a landslide-triggered tsunami warning system.
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.

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?

The Trifid Nebula highlights Hubble’s 36th anniversary

It's the Hubble Space Telescope's 36th anniversary! To celebrate, NASA has released an image of the iconic Trifid Nebula. Watch a video here.

Milky Way’s ‘ultra-faint dwarf galaxies’ help probe early universe

Ultra-faint dwarf galaxies preserve clues to early-universe conditions, acting as cosmic fossils. Simulations show whether they formed stars or stayed dark.

Earth images from space: 10 incredible photos of our planet

Happy Earth Day! As a celebration of Earth, enjoy these photos, a collection of the 10 best Earth images from space. What are your favorites?

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.

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.