‘Pursuit of the universe’s expansion rate began in the 1920s with measurements by astronomers Edwin P. Hubble and Georges Lemaître. In 1998, this led to the discovery of “dark energy,” a mysterious ...

A striking reality faces modern cosmology: two of the most advanced telescopes ever built now agree on a result that the standard cosmological model cannot explain. Webb’s confirmation of the Hubble ...

New measurements of the rate of expansion of the universe, led by astronomers at the University of California, Davis, add to a growing mystery: Estimates of a fundamental constant made with different ...

New observations by the Hubble Space Telescope suggest that the unexpected dimming of the red supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, ...

The big picture: Astronomers have observed something unusual in the data gathered by the Hubble Space Telescope: the universe seems to be expanding faster today than it was billions of years ago, ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The universe is expanding—but astronomers can’t agree how fast ...

The Milky Way galaxy in which our solar system lies may exist in a "giant void", where space is about a fifth as dense as the universal average. This is the conclusion of a team of researchers from ...

At least some evidence suggests that NGC 2775 developed its odd shape after merging with other galaxies eons ago. While not ...

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As locals and passersby cross into Mississippi from Louisiana, they notice a colossal Saturn V rocket, used to send man to the moon for the first time in 1969. As curious travelers looking for a space ...

"The Galaxy Next Door" — This composite image of the Andromeda galaxy was produced by NASA's Galaxy Evolution Explorer, showing Andromeda's ultraviolet side. Paris Alston: This is GBH's Morning ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Uranus and two of its moons, Miranda and Ariel. | Credit: Science: NASA, ESA, STScI, Christian ...