galaxies form

Hubble Goes to the eXtreme to Assemble Farthest-Ever View of the Universe

Called the eXtreme Deep Field, or XDF, the photo was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the…

In Deep Galaxy Surveys, Astronomers Get a Boost from Gravity

In a presentation at the American Astronomical Society meeting this week and a related paper in the current issue of the journal Nature, researchers say that…

Massive galaxies formed when universe was young

Some of the universe's most massive galaxies may have formed billions of years earlier than current scientific models predict, according to surprising new…

Making stars: Studies show how cosmic dust and gas shape galaxy evolution

“Formation of galaxies is one of the biggest remaining questions in astrophysics,” said Andrey Kravtsov, associate professor in astronomy & astrophysics at the…

Ancient Galaxy Cluster Still Producing Stars

In ongoing observations of one of the universe’s earliest, most distant cluster of galaxies using NASA’s Spitzer Space Telescope, an international team of…

New Recipe for Dwarf Galaxies: Start with Leftover Gas

The findings surprised astronomers because most galaxies form in association with a mysterious substance called dark matter or out of gas containing metals….

New understanding of the origin of galaxies advanced

A new theory as to how galaxies were formed in the Universe billions of years ago has been formulated by Hebrew University of Jerusalem cosmologists. The…

New understanding of the origin of galaxies advanced by Hebrew University Astrophysicists

The new theory, motivated by advanced astronomical observations and based on state-of-the-art computer simulations, maintains that the galaxies primarily…

How Do Galaxies Grow?

Astronomers have caught multiple massive galaxies in the act of merging about 4 billion years ago. This discovery, made possible by combining the power of the…