News tagged with galaxy formation

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Recycling galaxies caught in the act

(PhysOrg.com) -- When astronomers add up all the gas and dust contained in ordinary galaxies like our own Milky Way, they stumble on a puzzle: There is not nearly enough matter for stars to be born at the ...

Mar 30, 2012
3.6 / 5 (5) 14 | with audio podcast

Data mining deep space

Bahram Mobasher, a professor of physics and astronomy at the University of California, Riverside, has received a two-year $200,000 grant from NASA to compile into a data bank all the imaging observations of ...

Mar 29, 2012
4.7 / 5 (3) 0

Mapping galaxy formation in dual mode

A team of astronomers led by David Sobral (Leiden Observatory and Royal Observatory of Edinburgh) has explored the synergies between the Subaru Telescope and the United Kingdom Infra-Red Telescope (UKIRT) ...

Mar 28, 2012
4 / 5 (1) 4

Stars made from galactic recycling material

(PhysOrg.com) -- Ordinary galaxies such as our own Milky Way contain a plethora of gas and dust. Nevertheless, there is not nearly enough matter to explain how galaxies produce new stars at the observed rates ...

Mar 15, 2012
5 / 5 (3) 6 | with audio podcast

Citizen scientists reveal a bubbly Milky Way

(PhysOrg.com) -- A team of volunteers has pored over observations from NASA's Spitzer Space Telescope and discovered more than 5,000 "bubbles" in the disk of our Milky Way galaxy. Young, hot stars blow these ...

Mar 07, 2012
4.8 / 5 (5) 25 | with audio podcast

Dark matter core defies explanation

(PhysOrg.com) -- Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could ...

Mar 02, 2012
4.9 / 5 (26) 87 | with audio podcast

Transforming galaxies

(PhysOrg.com) -- Many of the Universe's galaxies are like our own, displaying beautiful spiral arms wrapping around a bright nucleus. Examples in this stunning image, taken with the Wide Field Camera 3 on ...

Feb 13, 2012
4.8 / 5 (6) 1 | with audio podcast

Black holes and star formation

(PhysOrg.com) -- It has long been recognized that galaxy mergers or even close interactions can play a vital role in shaping the morphology of galaxies. One way they can do so, it is thought, is by triggering ...

Feb 09, 2012
4.1 / 5 (7) 7 | with audio podcast

Do black holes help stars form?

(PhysOrg.com) -- The center of just about every galaxy is thought to host a black hole, some with masses of thousands of millions of Suns and consequently strong gravitational pulls that disrupt material around ...

Feb 03, 2012
4.5 / 5 (6) 1 | with audio podcast