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

Historically, the Andromeda Galaxy (M31) was a subject of extensive debate, initially considered a "nebulous smear" and later central to the "island universe" hypothesis proposing its status as an ...

On Oct. 13, 1773, a French astronomer named Charles Messier discovered the "whirlpool galaxy," also known as Messier 51, or M51. Charles Messier was scanning the sky for objects that could confuse ...

Science history On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular ...

Join in for live views of our nearby galactic neighborhood from the dark skies at McDonald Observatory.

Evidence of this quantum layer may be coming soon. Here’s what you’ll learn in this story: Physicists are still puzzling over ...

Under the leadership of George Ellery Hale, the mirror for Mount Wilson's 100-inch scope was ordered in 1906. Businessman John Hooker initially covered the expenses; when he later withdrew his support ...

Traditionally, science has been the counterargument for the existence of God. But mathematicians Olivier Bonnassies and ...

In October 1923, Edwin Hubble utilized the 100-inch Hooker telescope to photograph the Andromeda Nebula, identifying a variable star within it. Hubble applied the known period-luminosity relationship ...

The cluster can offer fresh insights into how stars of all sizes form and evolve. Star clusters are among the many objects observed by the Hubble Space Telescope. These gravitationally bound groups of ...

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 ...

NGC 7496, a dusty barred spiral galaxy located 24 million light-years away in the constellation Grus, harbors a ravenous ...