Sky & Telescope | Cosmology
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Keep up with the latest cosmology news and learn about the hunt for dark matter, ponder the nature of dark energy, and discover the earliest galaxies.
Sky & Telescope | Cosmology
1M ago
Astronomers have used the Webb telescope to observe Cepheid variable stars, ruling out one source of the prevailing "Hubble tension.”
The post Webb Telescope Measures Universe’s Expansion appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
1M ago
Faint, small galaxies ionized the opaque fog that obscured the early universe.
The post Webb Telescope Finds Dwarf Galaxies Lit Up the Early Universe appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
2M ago
Results from a brand-new high-energy observatory are rocking the field of cosmology. In particular, a study of more than 5,000 galaxy clusters relieves tension in the standard cosmological model.
The post Largest-ever Catalog of X-ray Sources Tests Cosmology appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
2M ago
By studying the formation and evolution of galaxies in the early universe, researchers seek to test the predictions of our leading theory of cosmology.
The post Using Ancient Ultraviolet Light to Probe Theories of Cosmology appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
3M ago
We have known for nearly 100 years that the universe is expanding. But only at the turn of the 21st century did astronomers discover that the expansion was actually speeding […]
The post How Strong Is Dark Energy? Intriguing Findings from New Supernova Catalog appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
4M ago
Galaxies are embedded within halos of dark matter, and the tilt of those halos can affect the galaxy's stellar halo and stellar disk.
The post Dark Halos and Warped Disks appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
4M ago
An international research collaboration trained computers to sift through millions of images for cosmic treasure.
The post Astronomers Discover 562 New Candidate Strong Lenses With Machine Learning appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
6M ago
Astronomers have discovered a ghost-like galaxy twice as large as the Milky Way. Its existence challenges our notions of dark matter.
The post Ghost-like Galaxy Defies Dark Matter Model appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
6M ago
The Flamingo simulations are not only the largest but also the most all-encompassing simulations of the universe, from 13.75 billion years ago to today.
The post Largest-ever Computer Simulation of the Universe appeared first on Sky & Telescope ..read more
Sky & Telescope | Cosmology
7M ago
Astronomers have directly imaged emission from the cosmic web, the filamentary structure that underlies the universe.
The post In a First, Astronomers Directly Image the Cosmic Web appeared first on Sky & Telescope ..read more