The Hubble Space Telescope was originally expected to last about 15 years in orbit, before its optical surfaces became too ...

NASA’s Hubble Space Telescope has made a significant breakthrough in the field of astronomy by refining the age of the ...

Hubble’s updated view of NGC 3370, richer in light and detail than ever before, deepens our understanding of both the galaxy and the cosmos itself. This new Hubble Picture of the Week highlights a ...

Measuring the expansion rate of the universe was one of the Hubble Space Telescope's main goals when it was launched in 1990. Measuring the expansion rate of the universe was one of the Hubble Space ...

Astronomers using the ultraviolet vision of NASA’s Hubble Space Telescope have captured one of the largest panoramic views of the fire and fury of star birth in the distant universe. The field ...

Astronomers using NASA’s Hubble Space Telescope have discovered that the universe is expanding 5 percent to 9 percent faster than expected. “This surprising finding may be an important clue to ...

The rate of the universe’s expansion has vexed astronomers for decades. Called the Hubble constant, the figure is quite different depending on how you get to it—fittingly, a source of constant ...

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

"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 ...

The question of how fast the universe is expanding continues to confound scientists. Although it might seem like a fairly straightforward issue, the reality is that it has been perplexing the best ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to calculate ...

The Methuselah Star, also known asHD 140283, has long been a subject of fascination among astronomers. Its age, initially ...