RSSAll Entries Tagged With: "Cepheid variable"

Andromeda Galaxy

Star that changed the universe

Pulsating star inspired Hubble’s view of a huge, expanding universe.

Galaxy NGC 5584

Hubble bursts dark energy bubble

Giant cosmic bubble ruled out as explanation for dark energy and accelerating universe.

Galaxy NGC 247

Galaxy not so far, far away

A dusty galaxy has been lying about how far away it is.

Artist's impression of OGLE-LMC-CEP0227

Pulsating star mystery solved

Lucky stellar alignment enables astronomers to test competing theories.