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The universe's water is billions of years older than scientists thought — and may be nearly as old as the Big Bang itselfA new study suggests that water first appeared in the universe just a couple hundred million years after the Big Bang — meaning life could have evolved billions of years earlier than previously thought.
12 Commentscosmology -
Space photo of the week: Hubble hunts a stellar 'imposter' hiding in the Great BearThe legendary Hubble Space Telescope has turned its gaze to the Ursa Major-adjacent galaxy UGC 5460, revealing spiral arms, star clusters and a possible supernova "imposter".
astronomy -
Fast radio burst traced to the outskirts of an ancient 'graveyard' galaxy — and the cause remains a mysteryScientists have traced a repeating fast radio burst (FRB) to the edge of an ancient galaxy where star formation has drastically dropped. Researchers are struggling to explain what caused it.
astronomy -
NASA supercomputer reveals strange spiral structure at the edge of our solar systemThe mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.
29 Commentsspace -
1 million 'interstellar objects' — each larger than the Statue of Liberty — may lurk in the outer solar systemNew simulations reveal that around 1 million "macroscopic" objects from our closest stellar neighbors, the Alpha Centauri system, may already reside in the Oort Cloud, far from sight.
7 Commentsastronomy -
Sun quiz: How well do you know our home star?Quiz Test your knowledge on the giant ball of burning gas at the heart of the solar system.
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Milky Way quiz: How well do you know our home galaxy?Quiz Test your knowledge of the Milky Way's size, speed, age, galactic neighbors and more.
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'Herculean' 2.5-billion-pixel mosaic shows our closest galactic neighbor like never before — and took more than a decade to createThe new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with more than 200 million individually resolved stars.
cosmology -
Something invisible and 'fuzzy' may lurk at the Milky Way's center, new research suggestsThe cores of galaxies may not be made of what we thought, new research suggests — they could hold one giant, invisible star made of mysterious "fuzzy" matter.
cosmology
