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Telescopes & Observatories
JWST, Hubble, radio arrays, and sky surveys revealing the cosmos.
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Latest in Telescopes & Observatories
Neptune’s Tiny Moons May Be Wreckage Left by Triton’s Capture
1+ hour, 25+ min ago (378+ words) The small moons inside Neptune’s rings may be the surviving debris of a much larger moon system destroyed when Triton was captured billions of years ago. Neptune’s smallest moons look like minor members of the solar system. They are difficult…...
JWST finds Chariklo’s inner ring growing denser while its outer ring fades
2+ hour, 31+ min ago (429+ words) Chariklo’s inner ring is getting denser. Its outer ring is fading. Both changes are happening at the same time — and, for the moment, nobody knows why. The finding matters beyond Chariklo itself. Ring systems around planets had already shown that…...
Haunting Hubble 'bubble' image captures cosmic cycle of destruction and creation
3+ hour, 26+ min ago (265+ words) A spectacular new Hubble Space Telescope image reveals almost 30,000 newborn stars around an enormous cavity carved into a stellar nursery in a neighboring galaxy. What it is: The nebula LHA 120-N44 Where it is: 160,000 light-years away, in the constellation Dorado When…...
What Is the Cosmic Microwave Background? The Universe’s Afterglow
3+ hour, 40+ min ago (663+ words) The cosmic microwave background is the oldest light we can observe. Here is where it came from, what its tiny patterns reveal, and why it still matters. About 380,000 years after the Big Bang, the expanding universe had cooled enough for…...
Researchers narrow possible UV absorbers in Venus’s clouds
1+ hour, 22+ min ago (317+ words) Researchers narrow down possible ultraviolet absorbers in Venus’s clouds UA.NEWS Researchers narrow down possible ultraviolet absorbers in Venus’s clouds An international group of researchers calculated what properties the unknown substance that creates dark patterns in the ultraviolet range in…...
Dense Galaxies Are Carving Out a Bubble in the Early Universe
12+ hour, 18+ min ago (112+ words) ...
A molecular-hydrogen cloud only 300 light-years away spans roughly 40 full-Moon widths across our sky, yet astronomers did not identify it until 2025. Named Eos, it escaped conventional surveys because they search for molecular hydrogen indirectly through carbon monoxide—and almost all of Eos is CO-dark.
12+ hour, 56+ min ago (858+ words) Eos covers about 20 degrees of sky, but almost all its estimated 3,400 solar masses of molecular hydrogen escaped the carbon-monoxide surveys normally used to find such clouds....
Scientists Forced Water Into a Bizarre New State of Matter That May Explain Uranus and Neptune’s Strange Mgnetic Fields
19+ hour, 11+ min ago (575+ words) What happens to water when the usual rules no longer seem to apply? Scientists have recreated extraordinary conditions in the lab, uncovering a state of matter that could be hiding deep inside distant planets. Scientists have created a bizarre type…...
‘Odd couple’ black holes can find each other in space
2+ day, 9+ hour ago (477+ words) When two black holes find each other in the vastness of space, they can form a binary odd couple—and it’s more common than researchers expected. Scientists think most black holes are born when a star dies and its core…...