Physicists Have a Major Problem With the Universe
Almost a century ago, famed astronomer Edwin Hubble determined that the universe is expanding at an accelerating rate.…
Scientists Just Confirmed One of the Greatest Mysteries of Our Universe. Now What?
Why the Hubble Tension Remains So PuzzlingAndriy Onufriyenko – Getty Images Here’s what you’ll learn when you read…
Expanding catalog of black hole collisions is rewriting the history of the universe
Between May 2023 and January 2024, a global network of gravitational-wave detectors picked up 128 new cosmic signals,…
Ancient Milky Way stars challenge the age of the universe and the Hubble tension
The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments.…
Scientists develop a new way to measure the expansion rate of the universe
For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe…
The James Webb telescope confirms a troubling mystery about the universe’s expansion
The James Webb Space Telescope, working alongside Hubble, has uncovered an unsettling contradiction about how fast the universe…