milky
The History of the Milky Way Comes into Focus
By dating nearly a quarter-million stars, astronomers were able to reconstruct the history of our galaxy—and they say it has lived an “enormously sheltered life…
Saying Farewell to the Spacecraft That Mapped the Milky Way
The Gaia spacecraft stopped collecting data this January after about 11 years and more than three trillion observations. Senior space and physics editor Lee Bil…
Andromeda Snickers at Milky Way Mass
A new estimate finds that the Milky Way, once thought to be twice as massive as Andromeda, may actually only have half our neighbor galaxy's mass. Christopher I…
