Leavitt's work on cepheids proved invaluable for Hubble's other great finding: the expansion of the universe. While others, such as Georges Lemaître, had theorized that the universe was expanding by ...

The Hubble Space Telescope, a cornerstone of modern astronomy, has been providing breathtaking images and invaluable data for ...

Mira variable stars change in luminosity in a regular pattern. Scientists have used 40 Mira variable stars to anchor an ...

Due to its stellar activity, the galaxy has become a favorite for astronomers using the Hubble Space Telescope ...

Scientists figured out that the universe is billions of years old — after years of reading ancient rocks and dying stars, and ...

The Large Magellanic Cloud (LMC) is considered a satellite galaxy of the Milky Way. It's actually visible to the naked eye ...