The explosive growth in satellite numbers in low Earth orbit is proving problematic for space telescopes.

The universe’s expansion rate was supposed to be a solved problem, yet the latest high precision map of the early cosmos has ...

Wonder Bound, the product of a collaboration between Johns Hopkins University, the Space Telescope Science Institute, and the ...

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 ...

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 ...

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 ...

NORFOLK, Va. — The year was 1990. The groundbreaking Hubble telescope was first launched into orbit, but it didn’t take long for scientists to see something was wrong. At the time it was called the ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

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 ...