The book describes how astronomers’ estimates of the Hubble constant have changed over time as observations ... cosmology should not detract from the extraordinary achievements of astronomy and ...

As fall deepens in the Northern Hemisphere, a single point of light emerges low on the southeastern horizon. That star is ...

Explore the intricate functioning of the Hubble Space Telescope through engaging 3D animation. #howitworks #3d #3danimation ...

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

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

The wavelengths of radio light are so large that you can't capture a high-resolution image with a single dish. To capture an ...

In the constellation Cepheus lies the barred spiral galaxy NGC 6951. Due to its stellar activity, the galaxy has become a favorite for astronomers using the Hubble Space Telescope. Orbiting above ...

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 ...

I first met Anna Marlis Burgard at a retreat house on Enders Island, near Mystic, Connecticut. She produces public ex ...

On the night of Oct. 5 to 6, 1923, Edwin Hubble discovered a new star — and revealed the utter vastness of the universe. Hubble was looking at the cosmos with the 100-inch Hooker telescope at 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 ...

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