The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...

ESA/Hubble & NASA, A. Nota, P. Massey, E. Sabbi, C. Murray, M. Zamani (ESA/Hubble) This month sees a very special birthday: the 35th anniversary of the Hubble Space Telescope. The venerable old ...

Hubble and its fellow observatories give us an unprecedented, crystal-clear look at the far reaches of the cosmos. Explore these orbiting pioneers and learn what they've discovered. 3 min read The ...

The Hubble Space Telescope captured an image of a star and a spiral galaxy, both in the constellation Virgo. But the photo is an optical illusion. This Hubble Space Telescope image shows a spiral ...

A Hubble telescope image shows the most detailed view of NGC 346 yet, a stellar nursery within the Small Magellanic Cloud. Credit: ESA / NASA / A. Nota / P. Massey / E. Sabbi / C. Murray / M.

This discrepancy is known as the "Hubble tension," a real crisis for cosmology ... velocity of all the matter within a sphere of some fixed radius. There are some technicalities because ...

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex atmospheric changes on Uranus that are largely driven by the effects of the sun's ...

Edwin Powell Hubble is renowned for determining that there are other galaxies in the Universe beyond the Milky Way, and for observing that the universe is expanding at a constant rate. Hubble was ...