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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.
April 23, 2026
Waves on other planets vary widely, new MIT study suggests
A new study from MIT suggests that waves on other planets should vary greatly. Scientists are looking at the lakes and seas of Saturn's moon Titan for clues.
April 23, 2026
How much water on exoplanets does life need?
Astronomers think water is essential to life as we know it. So how much water on exoplanets does life need? A new study suggests 20-50% of Earth's water.
April 23, 2026
Black hole Cygnus X-1 has fast, powerful dancing jets
The Cygnus X-1 black hole emits jets that are bent by stellar winds from a companion star. This has enabled astronomers to calculate the power of those jets.
April 22, 2026
Summer solstice in Mars’ southern hemisphere is April 25
The summer solstice in Mars' southern hemisphere happens on April 25, 2026. Summertime there typically kicks off dust season on the red planet.
April 22, 2026
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?
April 22, 2026
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.
April 19, 2026
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.
April 19, 2026
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.
April 19, 2026
DESI’s 3D map of the universe is complete!
Astronomers have completed the largest, most detailed 3D map of the universe ever made. It will help reveal how dark energy shapes the cosmos.
April 17, 2026
