In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon. What backyard observers don't ...
Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full moon. What backyard observers don't ...
SPHEREx is set to launch at Friday from California. Here are five things to know about NASA's latest advanced space telescope ...
NASA's Hubble Space Telescope reveals surprising details about Andromeda's satellite galaxies, offering fresh insights into ...
Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...
In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...
The center of our Milky Way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas.
Since Hubble’s launch, astronomers have discovered over 1 trillion galaxies, but Andromeda stands out as the closest and most ...
A new study using NASA 's James Webb Space Telescope has revealed a variety of light coming from the black hole Sagittarius A* — or rather its accretion disk, the ring of rapidly spinning material ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results