What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

But during the 1920s, astronomer Edwin Hubble began measuring the red shift – the amount light is shifted to the red end of the spectrum – and noticed that it varied depending on how fast a ...

1. The Hubble Tension Light appears to obey a kind of cosmic speed limit abbreviated as c, which was an integral part of Einstein's theory of relativity.

Hubble’s work confirmed these findings in 1929. These early observations relied on a phenomenon called red shift, which is the visual version of the doppler effect.

This new image showcases NGC 346, a dazzling young star cluster in the Small Magellanic Cloud. ESA/Hubble & NASA, A. Nota, P. Massey, E. Sabbi, C. Murray, M. Zamani (ESA/Hubble) This month sees a ...

Edwin Hubble shattered the astronomical boundaries of the 1920s by identifying other galaxies beyond the Milky Way and unveiling the universe’s expansion, igniting a new era of cosmic exploration. A ...

One century after Edwin Hubble revealed his astonishing discovery of a cosmos beyond the Milky Way, the most precise measurements still can’t agree on how fast galaxies are moving.

Furthermore, according to a law described by Astronomer Edwin Hubble in 1929 (and never successfully challenged since), the greater the red shift in a galaxy’s spectrum, the faster the galaxy is ...

Astronomer Dr. Edwin Powell Hubble (1889 - 1953) sitting in a chair at a desk reading a journal. Image: New York Times Co./Getty Images This article was originally featured on The Conversation.

100 years ago, a young Edwin Hubble settled astronomy’s "Great Debate" By Chris Impey Published February 14, 2025 7:44AM (EST) Spinning Galaxy (Getty Images/cokada) ...

Edwin Hubble was young and ambitious. At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the new Hooker 100-inch telescope, at the time the largest ...