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Telescopes & Observatories
JWST, Hubble, radio arrays, and sky surveys revealing the cosmos.
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Latest in Telescopes & Observatories
Where does a planet end and a star begin? Webb found a free-floating brown dwarf only about twice Jupiter’s mass, surrounded by a disk of planet-forming material — an object with a planet’s mass that appears to have formed like a star.
3+ hour, 36+ min ago (1201+ words) Webb spectroscopy identifies a roughly two-Jupiter-mass IC 348 member with infrared excess from a disk, while spatial evidence favors star-like formation over planetary ejection....
Strange Seeds Appear to Be Growing Into Massive Black Holes
4+ hour, 3+ min ago (492+ words) Published Sep 20, 2026 8:00 AM EDT For years now, scientists have been puzzled by the existence of “little red dots” first showing up in observations by NASA’s James Webb Space Telescope. These objects appeared in a region they believe dates to just…...
How do mirrors reflect our images?
4+ hour, 13+ min ago (210+ words) Can you imagine never knowing what you looked like? To think about it, without mirrors, you would’ve never seen a crisp-clear image of yourself. Sure, you may get …...
A New Helium Measurement Is Testing the Universe’s First Five Minutes
1+ day, 2+ hour ago (357+ words) Helium, a light chemical element, carries clues to what the universe was like during its first five minutes. To read that record, an international team turned to 15 small, remote galaxies whose chemistry has changed very little, preserving a composition close…...
Hubble Finds a Spiral Galaxy Spinning Out of Sync
14+ hour, 58+ min ago (561+ words) The galaxy, called NGC 4698, is located about 55 million light-years from Earth in the constellation Virgo. It belongs to the Virgo Cluster, the closest large collection of galaxies held together by gravity. This enormous group contains more than 1,000 galaxies. At first…...
A cosmic web of cosmologies
1+ week, 1+ day ago (400+ words) Cosmology is the study of the universe; its birth, evolution, and ultimate fate. This includes further developing and refining the prevailing model, the Big Bang theory, investigating the universe’s rate of expansion, and measuring radiation left over from the Big…...
A Telescope in Chile Just Revealed 47 “Ghost Galaxies” Too Faint for Most Instruments to See
23+ hour, 12+ min ago (690+ words) They were almost invisible against the darkness of space, but a careful search with a powerful telescope has brought a forgotten population of galaxies into view. Dwarf galaxies are among the most abundant ones in the universe, but their low…...
A Pulsar Is Feeding on a Giant Star’s Wind. How Can Astronomers See It? — Curiosmos
1+ day, 4+ hour ago (1000+ words) A neutron-star pulsar is pulling gas from a blue hypergiant 13,000 light-years away. XRISM’s X-ray spectra show how astronomers can follow that material as it falls. A neutron star only about 20 kilometres across is orbiting a blue hypergiant nearly 60 times the…...
Winners of the 2026 ZWO Astronomy Photographer of the Year
1+ day, 17+ hour ago (26+ words) ABC News - Breaking News, Latest News and Videos Stunning James Webb Space Telescope Images of 2025...