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Posts by
EarthSky Voices
How do fireworks get their beautiful colors?
The red, orange, yellow, green, blue and purple colors exploding in the night sky during a fireworks festival are created by the use of metal salts.
July 3, 2026
Comet 3I/ATLAS over 10 billion years old, Webb finds
The Webb space telescope has found chemical clues to the origin of interstellar comet 3I/ATLAS. It appears to be several times older than our solar system.
June 24, 2026
Asteroid or comet? Meteor or meteorite? Answers here
A bright light zips through the night sky. But what is it? Asteroid or comet? Find the answers here and share your knowledge with your friends and family.
June 23, 2026
Space
No crisis? Universe’s expansion is accelerating, study says
Rebutting a surprising paper from 2025, a new study has found that the universe's expansion is accelerating after all. Crisis averted?
June 18, 2026
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.
June 15, 2026
Did galaxy-killing wind shape the early universe?
Winds from intense star formation in the early universe swept away material for future stars. This galaxy-killing wind led to the early deaths of galaxies.
June 12, 2026
Dark matter: How new telescopes might help us find it
New telescopes might bring scientists closer to detecting dark matter. They could soon reveal signals that finally let us understand this mysterious substance.
June 11, 2026
Earth
California faults under record stress, study finds
A new model of 1,000 years of earthquake history along 2 California faults has revealed that these faults are under record levels of stress.
June 9, 2026
NASA’s Perpetual Ocean 2 video will mesmerize you
Watch a mesmerizing perpetual ocean video that shows the movements of the currents and eddies that churn off the eastern coasts of the continents.
June 7, 2026
Magnetic exoplanets? Strange winds are strongest hint yet
Astronomers have found the strongest hint yet of magnetic exoplanets, thanks to new measurements of strange winds on distant worlds.
June 3, 2026
