"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

A new study, published on Arxiv, has deepened the cosmic puzzle surrounding the “Hubble tension,” an ongoing debate about the ...

The cosmos has thrown up another enigma: a stunning new image of the interstellar comet 3I/ATLAS, captured by the veteran ...

In 1990, a new eye into the cosmos launched from Kennedy Space Center. Hubble, a revolutionary new telescope, would soon bring a level of clarity and wonder to scientists and citizens alike. Hovering ...

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories ...

On Monday, NASA — in tandem with the White House — released an incredible deep-field image taken by the James Webb Space Telescope (JWST), which demonstrates how this telescope will be able to look ...

The image’s subject is the galaxy cluster MACS0416, roughly 4.3 billion light-years from here. In point of fact, it’s actually two smaller galaxy clusters in the process of smashing into one another.

It's easy to get the impression that NASA's James Webb Space Telescope was built to outright replace what's perhaps history's most important space telescope, the Hubble Space Telescope. But because ...

For almost a century, astronomers have been using the Hubble-Lemaitre constant to explain the accelerating expansion of the universe, an intrinsic piece of the puzzle that supports the Big Bang theory ...

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Astronomers this week unveiled the deepest visible-light portrait of the universe ever made. Compiled by the Hubble Space Telescope as it stared into a narrow corridor of space more than 13 billon ...