Could a telescope ever see the beginning of time? An astronomer explains

Now out in space for more than two years, the James Webb Space Telescope is a stunningly sophisticated instrument.

Adi Foord, Assistant Professor of Astronomy and Astrophysics, University of Maryland, Baltimore County • conversation
April 8, 2024 ~9 min

Galaxy mergers solve early Universe mystery

A team of astronomers, led by the University of Cambridge, has used the NASA/ESA/CSA James Webb Space Telescope to reveal, for the first time, what lies in the

Cambridge University News • cambridge
Jan. 18, 2024 ~5 min


Astronomers detect oldest black hole ever observed

Researchers have discovered the oldest black hole ever observed, dating from the dawn of the universe, and found that it is ‘eating’ its host galaxy to death.

Cambridge University News • cambridge
Jan. 17, 2024 ~4 min

The universe is expanding faster than theory predicts – physicists are searching for new ideas that might explain the mismatch

The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.

Ryan Keeley, Postdoctoral Scholar in Physics, University of California, Merced • conversation
Nov. 15, 2023 ~7 min

'Big Bang of Numbers' – The Conversation's book club explores how math alone could create the universe with author Manil Suri

A book-length thought experiment uses math to investigate some of life’s big questions.

Maggie Villiger, Senior Science + Technology Editor • conversation
Sept. 18, 2023 ~8 min

Looking back toward cosmic dawn − astronomers confirm the faintest galaxy ever seen

The universe used to be filled with a hydrogen fog, before early stars and galaxies burned through the haze. Astronomers are studying galaxies that tell them about this period in the early universe.

Guido Roberts-Borsani, Postdoctoral Researcher in Astrophysics, University of California, Los Angeles • conversation
Aug. 8, 2023 ~9 min

Measuring helium in distant galaxies may give physicists insight into why the universe exists

The way particles interacted while the universe was forming seconds after the Big Bang could explain why the universe exists the way it does – a physicist explains matter-antimatter asymmetry.

Anne-Katherine Burns, Ph.D. Candidate in Theoretical Particle Physics, University of California, Irvine • conversation
July 26, 2023 ~8 min

Astronomers identify earliest strands of the ‘cosmic web’

A strand of lined-up galaxies in the early universe reveals clues—and questions—about the fundamental architecture of the universe.

Daniel Stolte-Arizona • futurity
July 10, 2023 ~7 min


A subtle symphony of ripples in spacetime – astronomers use dead stars to measure gravitational waves produced by ancient black holes

Astronomers have for the first time detected the background hum of gravitational waves likely caused by merging black holes.

Chris Impey, University Distinguished Professor of Astronomy, University of Arizona • conversation
June 30, 2023 ~9 min

Early universe crackled with bursts of star formation, Webb Telescope shows

Among the most fundamental questions in astronomy is: How did the first stars and galaxies form? The James Webb Space Telescope (JWST), a partnership between

Cambridge University News • cambridge
June 6, 2023 ~7 min

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