News tagged with galaxy formation

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The rise and fall of galactic cities

(Phys.org) —In the fable of the town and country mice, the country mouse visits his city-dwelling cousin to discover a world of opulence. In the early cosmos, billions of years ago, galaxies resided in ...

Dec 19, 2013
4.9 / 5 (8) 1 | with audio podcast

Image: Starbursting in the galaxy M82

(Phys.org) —Messier 82 (M82), the galaxy in which the nearest supernova in decades recently exploded, also is the closest galaxy that is undergoing a rapid burst of star formation, known as a starburst. ...

Feb 03, 2014
4.9 / 5 (8) 0

Classic portrait of a barred spiral galaxy

(PhysOrg.com) -- The NASA/ESA Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073, which is found in the constellation of Cetus (The Sea Monster). Our own galaxy, the Milky Way, ...

Feb 03, 2012
4.8 / 5 (8) 3 | with audio podcast

Pan-STARRS finds a 'lost' supernova

(Phys.org) —The star Eta Carinae is ready to blow. 170 years ago, this 100-solar-mass object belched out several suns' worth of gas in an eruption that made it the second-brightest star after Sirius. That ...

Mar 07, 2013
4.8 / 5 (8) 1 | with audio podcast

Giant galaxies akin to snowflakes in space

(PhysOrg.com) -- Giant galaxies that contain billions of stars are born in much the same way as delicate snowflakes, new research from Swinburne University of Technology has shown.

Feb 21, 2011
4.4 / 5 (8) 5 | with audio podcast

Exotic galaxy reveals tantalizing tale

(PhysOrg.com) -- A galaxy with a combination of characteristics never seen before is giving astronomers a tantalizing peek at processes they believe played key roles in the growth of galaxies and clusters ...

Aug 25, 2011
5 / 5 (7) 4 | with audio podcast

First 'bone' of the Milky Way identified

(Phys.org)—Our Milky Way is a spiral galaxy—a pinwheel-shaped collection of stars, gas and dust. It has a central bar and two major spiral arms that wrap around its disk. Since we view the Milky Way from ...

Jan 08, 2013
4.4 / 5 (8) 4 | with audio podcast

ALMA pinpoints early galaxies at record speed

(Phys.org) —A team of astronomers has used the new ALMA (Atacama Large Millimeter/submillimeter Array) telescope to pinpoint the locations of over 100 of the most fertile star-forming galaxies in the early ...

Apr 17, 2013
5 / 5 (7) 5 | with audio podcast

Orphan supernovae?

For some years now astronomers have been scratching their heads over the appearance of supernovae that detonate out in the middle of nowhere – rather than within a host galaxy.

Nov 14, 2011
4.9 / 5 (7) 13

Testing the spiral density wave theory

Spiral galaxies are one of the most captivating structures in astronomy, yet their nature is still not fully understood. Astronomers currently have two categories of theories that can explain this structure, ...

May 30, 2011
4.7 / 5 (7) 4

ASU astronomers discover faintest distant galaxy

Astronomers at Arizona State University have found an exceptionally distant galaxy, ranked among the top 10 most distant objects currently known in space. Light from the recently detected galaxy left the object ...

Jun 01, 2012
4.7 / 5 (7) 10 | with audio podcast