A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black holes or a cosmic particle accelerator.
A new quantum recipe for black holes could be the first step toward a theory of "quantum gravity", the "holy grail" of physics.
"Its occurrence is like finding a tropical seed in Arctic ice – indicating either an unexpected local environment or long-distance transport in the early solar system."
Astronomers have discovered a galaxy that has been "frozen in time" for billions of years. Like a celestial dinosaur fossil, this galaxy could reveal the secrets of cosmic evolution.
"Each new detection brings us closer to understanding the origins of complex organic chemistry in the universe — and perhaps, the origins of the building blocks of life themselves."
The satellites were seen in the night skies near the summit of Maunakea in Hawai'i.
With the aid of NASA's exoplanet-hunter TESS, citizen scientists have discovered a new gas giant that is cool, literally and figuratively.
Muon Space released the first images from its new wildfire detection satellite, FireSat.
The World Meteorological Organization maintains a list of 21 hurricane names for each year. In especially busy years, a supplemental list is used.
Parisian astronomer Camille Flammarion brought used science fiction to bring Mars to life
