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’s infrared imaging of Sh2-284 unveils stars hidden within dense gas and dust, offering insights into star formation.

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 ...

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 ...

"The operations work at STScI, NASA's Goddard Space Flight Center, and other NASA contractors is funded by the operational ...

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 ...

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 ...