Hubble has made more than 1.6 million observations over the course of its lifetime, NASA says. And Hubble's discoveries have spawned more than 21,000 peer-reviewed science papers.

To celebrate the Hubble telescope's 35th anniversary, NASA released some striking new images on Wednesday, including a bold rendition of Mars and a stunning photo of a moth-shaped nebula with a ...

This new image showcases NGC 346, a dazzling young star cluster in the Small Magellanic Cloud. ESA/Hubble & NASA, A. Nota, P. Massey, E. Sabbi, C. Murray, M. Zamani (ESA/Hubble) This month sees a ...

Edwin Hubble shattered the astronomical boundaries of the 1920s by identifying other galaxies beyond the Milky Way and unveiling the universe’s expansion, igniting a new era of cosmic exploration. A ...

Astronomer Dr. Edwin Powell Hubble (1889 - 1953) sitting in a chair at a desk reading a journal. Image: New York Times Co./Getty Images This article was originally featured on The Conversation.

It seemed that these redshifted galaxies were all moving away from the Milky Way. Hubble’s results suggested the farther away a galaxy was, the faster it was moving away from Earth.

Hubble’s work opened the door to the study of the universe beyond our galaxy. In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and contains ...

(THE CONVERSATION) A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by ...

Lemaitre was the first to argue that the expansion must have begun during the big bang. NASA named its flagship space observatory after Hubble, and it has been used to study galaxies for 35 years.