Detecting similar emission from a distant world could help astronomers find other planets that boast bright and beautiful rings.
A machine learning technique filled in data gaps in the image of M87’s black hole, resulting in a thinner ring.
The exhibition examines how light pollution harms astronomy, ecosystems and human cultures. But it also offers hope.
Where are there NOT volcanoes on Venus? A new map of the planet unveils a veritable volcanic bonanza.
The finding suggests that early galaxies might have gained more of their bulk from streams of cold gas instead of in violent galaxy collisions.
Thanks to gravitational squeezing by their host planets, some moons of rogue planets could stay warm for over a billion years, simulations suggest.
During its infancy, Jupiter may have glowed about 10 thousand times brighter than it does today, which may explain why its moon Io is completely dry.
Astronomers spotted both a fast radio burst and gravitational waves from a cosmic smashup in the same part of the sky and at about the same time.
TRAPPIST-1b is hotter than astronomers expected, suggesting there’s no atmosphere to transport heat around the planet.