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EarthSky Voices
First 1% of new cosmic atlas reveals millions of galaxies
The Euclid mission to survey the universe and understand the nature of dark energy and expanding universe has just released the first 1% of its cosmic atlas.
October 19, 2024
Sun officially reaches solar maximum in its 11-year cycle
NASA and NOAA announced on October 15, 2024, that the sun has reached the peak of its 11-year solar cycle, or what is known as solar maximum.
October 16, 2024
Jupiter’s Great Red Spot wiggles like gelatin
New observations with the Hubble Space Telescope show that Jupiter's Great Red Spot wiggles like a bowl of gelatin. It squeezes in and out like a stress ball.
October 13, 2024
Black hole destroys a star, goes after another
A black hole shredded one star and now, a few years later, the debris disk is pummeling another star. This second star flashes in X-ray every time it gets hit.
October 11, 2024
Why leaves change color. Plus, EarthSky spies peak fall color 2024
The vivid yellows, oranges and reds of autumn leaves are there throughout spring and summer, but hidden. Here's why leaves change color in the fall.
October 11, 2024
Westerlund 1 star cluster: Imagine if we lived here
Imagine a sky full of stars as bright as a full moon. If we were in this super star cluster - called Westerlund 1 - that's what we might see.
October 10, 2024
How likely is a doomsday asteroid swarm from Comet Encke?
Astronomers studying the debris that causes the Taurid meteor shower said it's unlikely there's a doomsday asteroid swarm hidden in the debris.
October 10, 2024
Alpheratz belongs to Andromeda, but is part of the Great Square
Alpheratz appears to our eyes as a single star but it is actually a close binary star system. Many stargazers use it to locate the Andromeda galaxy.
October 9, 2024
Centaur jets? Webb detects jets of gas on distant icy body
Webb detected jets of carbon monoxide and carbon dioxide gas on a distant icy centaur. This may shed light on the formation and evolution of the solar system.
October 6, 2024
Biobots are a 3rd state between life and death
Biobots are tiny, multicellular robots powered by living cells to perform tasks, and they're a third state between life and death.
September 29, 2024
