News tagged with star formation

X-ray quasars, and a distance record

Quasars are thought to be galaxies whose bright nuclei contain massive black holes around which disks are actively accreting matter. The accretion process releases vast amounts of energy, often including a ...

Apr 30, 2012
3 / 5 (3) 0 | with audio podcast

The anatomy of a stellar outflow

(Phys.org) -- Astronomers used to think that star formation simply involved the gradual coalescence of material under the influence of gravity. No longer. Making a new star is a complex process, among other ...

May 28, 2012
5 / 5 (10) 4 | with audio podcast

Astronomers spy on galaxies in the raw

(Phys.org) —A CSIRO radio telescope has detected the raw material for making the first stars in galaxies that formed when the Universe was just three billion years old—less than a quarter of its current ...

Jun 24, 2013
5 / 5 (4) 2 | with audio podcast

Measuring magnetic fields

(Phys.org) -- Polarized light is a familiar phenomenon, as people who prefer polarized sunglasses can testify. The electric field in a beam of light can vibrate either left-right or up-down, and the scattering ...

Apr 09, 2012
5 / 5 (3) 0 | with audio podcast

When stellar metallicity sparks planet formation

New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, ...

Apr 10, 2012
5 / 5 (1) 9 | with audio podcast

Image: Hubble peeks inside a stellar cloud

(Phys.org) -- These bright stars shining through what looks like a haze in the night sky are part of a young stellar grouping in one of the largest known star formation regions of the Large Magellanic Cloud ...

Apr 23, 2012
5 / 5 (4) 8 | with audio podcast

NGC 3344: Hubble sees galaxy in a spin

(Phys.org)—NGC 3344 is a glorious spiral galaxy around half the size of the Milky Way, which lies 25 million light-years distant. We are fortunate enough to see NGC 3344 face-on, allowing us to study its ...

Oct 22, 2012
5 / 5 (5) 4 | with audio podcast

The rich colors of a cosmic seagull (w/ video)

(Phys.org)—This new image from ESO's La Silla Observatory shows part of a stellar nursery nicknamed the Seagull Nebula. This cloud of gas, formally called Sharpless 2-292, seems to form the head of the ...

Sep 26, 2012
3.7 / 5 (3) 1 | with audio podcast

Galaxies in the young cosmos

(Phys.org) -- The universe was born about 13.7 billion years ago in the big bang. The Sun and its system of planets formed about five billion years ago. What happened, then, during that long, intervening stretch ...

May 21, 2012
3.5 / 5 (2) 9 | with audio podcast