Cosmology

Data from the CHIME radio observatory are a milestone in the quest to discover the hidden origins of universal structure

A research team finds seven tiny dwarf galaxies stripped of their dark matter that nonetheless persisted despite the theft.

A debate over conflicting measurements of key cosmological properties is set to shape the next decade of astronomy and astrophysics

The surprisingly bright galaxy, called HD1, may contain some of the universe’s first stars, as well as a supermassive black hole

Called Earendel, the star is nearly 13 billion light-years from Earth

Fresh data suggest instrumental errors may have mimicked a purported signal from the universe’s first stars

The observatory’s unprecedented infrared measurements might at last bridge a growing rift between astronomers over how fast the universe is expanding

The scientists found several previously hidden galaxies that date back to 13 billion years ago—and many more might be missing from our current census of the early universe.

New revelations about how galaxies collide show what might happen when our galaxy meets Andromeda

Developing quantum-gravity technologies may elevate us to a “class A” civilization, capable of creating a baby universe

Ewine van Dishoeck received the Kavli Prize in Astrophysics in 2018 for elucidating the life cycle of interstellar clouds and the formation of stars and planets. What other mysteries of space are left to be uncovered?

Hints of a previously unknown, primordial form of the substance could explain why the cosmos now seems to be expanding faster than theory predicts