Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...

It’s not often that telescopes suspended in space have landmark birthdays like this one. Launched on April 24, 1990, NASA’s Hubble Space Telescope has orbited at about 320 miles above Earth’s surface, ...

Astronomers and cosmologists aren’t known for being incredible at adjectives. Take the Very Large Telescope, or the European Extremely Large Telescope, or even the big bang. But they weren’t wrong ...

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...