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The first shocking images of the new James Webb Space Telescope
Its primary mirror consists of 18 hexagonal segments with a total width of 6.5 meters and a weight of 40 kilograms. For comparison, the Hubble mirror is only 2.4 meters (21 feet and four inches ...
Hubble Captures Stunning Infrared Image of Sh2-284, a Massive Stellar Nursery
Hubble’s infrared imaging of Sh2-284 unveils stars hidden within dense gas and dust, offering insights into star formation.
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Test Equipment, Shim Washers, And A 30 Year Old Space Telescope
They were in charge of building and testing the Hubble’s mirror. It was off by about 2 micrometers. That doesn’t sound like much, but when you are focusing light — especially light from ...
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
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NASA's Webb telescope threatened with budget cuts. They would hit hard.
"The operations work at STScI, NASA's Goddard Space Flight Center, and other NASA contractors is funded by the operational ...
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Hubble's replacement is coming very soon
An curved arrow pointing right. The Hubble telescope's replacement – the James Webb space telescope – just had its final mirror installed. The new telescope has been in the works since 1996 ...
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Hubble identifies a new galaxy
Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...