A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.
Comet 41P slowed its rotation to a halt and then began spinning in the opposite direction, surprising scientists.
Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...
JWST observed Uranus for nearly a full rotation, charting the planet's upper atmosphere and magnetic environment for the ...
New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.
NASA’s Chandra X-ray Observatory captured a protective astrosphere around HD 61005, providing direct observation of a Sun-like star’s wind interacting with surrounding interstellar material ...
A team of astronomers has identified an extremely faint galaxy called CDG-2, located roughly 300 million light-years from Earth, where an estimated 99% of its total mass is made of invisible dark ...
Called CDG-2, this newly identified “ghostly” galaxy may be one of the most dark matter-dominated galaxies ever discovered, with a staggering 99% of its total mass made up of dark matter — a ...
Most galaxies in the universe glow brilliantly over cosmic time and space. However, a unique type of galaxies remains ...
Using data from the Hubble Space Telescope, ESA’s Euclid space observatory, and Hawaii’s Subaru Telescope, the researchers discovered faint light emitting around the clusters. That light was clear ...
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