The radio telescope in Puerto Rico has to come down before it collapses.
“The Uranus jokes never end,” an astronomer said.
Future astronauts seeking water on the moon may not need to go into the most treacherous craters in its polar regions to find it.
Astronomers observed a star become a “feast” for a cosmic monster.
He was a scientist who succeeded in seeing the unseeable and hoped to tune in to extraterrestrial life.
The discovery of a black hole surrounded by protogalaxies provides astronomers with a rare glimpse of the web of matter permeating the cosmos.
The birthplace of modern cosmology “has been declared safe” from the wildfires that have ravaged the surrounding area in Southern California.
The detection of a gas in the planet’s atmosphere could turn scientists’ gaze to a planet long overlooked in the search for extraterrestrial life.
Astrophysicists have recently begun hatching plans to find out just how weird Planet Nine might be.
The iconic Arecibo radio telescope is temporarily crippled by an accident.
The mysterious dimming of the red supergiant Betelgeuse is the result of a stellar exhalation, astronomers say.
The F.C.C. approved the company’s 3,236-satellite constellation, which aims to provide high-speed internet service around the world.
The universe will have to wait a little longer.
A black hole was seen shooting electrified gas and energy into space. Each blob contained about 400 million billion pounds of matter.
Dr. Roman was a pioneer at NASA, joining the agency in its early days and becoming its first chief astronomer.
A vast wheel of gas in the primordial cosmos is forcing astronomers to rethink how some of the universe’s largest structures may have formed.
Astronomers dissect the energy flow in a distant galaxy.
Some astronomers who have criticized the company’s orbital internet constellation were encouraged by the measures it announced.
Fomalhaut b was one of the first planets around another star to be directly imaged by telescopes. Some astronomers now say it was a cloud of asteroid debris.