The Latest Breaking News from Edwin Hubble

It’s one of the biggest puzzles in cosmology. Why two different methods used to calculate the rate at which the universe is expanding don’t produce the same result. Known as the Hubble tension, the enigma suggests that there could be something wrong with the standard model of cosmology used to…

Astronomers, maybe more than anyone, appreciate what an island of perfection our Earth is. Our orbit may put us at a perfect distance from the sun for life to flourish, but it is too small to easily help astronomers determine how big the universe is.

Penzias, with his colleague Robert Woodrow Wilson, discovered the cosmic microwave background while working at Bell Labs in the 1960s. The finding was the smoking gun evidence for the Big Bang.

Dec. 24, 2023: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

For decades, measurements of the universe's expansion have suggested a disparity known as the Hubble tension, which threatens to break cosmology as we know it. Now, on the eve of its second anniversary, a new finding by the James Webb Space Telescope has only entrenched the mystery.

University of Chicago astronomer Wendy Freedman tells us how she's searching for an answer to the Hubble tension — a discrepancy between measurements of our universe's expansion that could threaten the dominant model of how the universe has grown since the Big Bang.

The Hubble Space Telescope photographed NGC 2814, an irregular galaxy that belongs to a group of four "late-type galaxies" collectively called Holmberg 124.

Measurements of how fast the universe is expanding differ depending on how you measure the rate. Could a huge under-density of galaxies, including the Milky Way, be to blame?

A stunning new image from the James Webb Space Telescope shows the Milky Way's neighbor, NGC 6822, glowing green and gold while punctuated by bright red and blue stars, revealing its lack of metal.