Astronomers have used ESA's Herschel Space Observatory to solve a decades-old mystery about the origin of powerful cool gas winds in the hot environs of quasars. The evidence linking these powerful winds to star formation ...
Astronomy
Dec 7, 2017
11
147
Taking a picture of an exoplanet—a planet in a solar system beyond our sun—is no easy task. The light of a planet's parent star far outshines the light from the planet itself, making the planet difficult to see. While ...
Astronomy
Dec 4, 2017
1
142
The current cosmological model to explain the universe, the "Big Bang" model, aims to describe all observable phenomena, including the evolution of galaxies from earliest times to the present day. One of the major problems ...
Astronomy
Nov 29, 2017
2
330
Collisions between galaxies, especially ones rich in molecular gas, can trigger bursts of star formation that heat the dust and result in their shining brightly in the infrared. Astronomers think that there is also significant ...
Astronomy
May 1, 2017
10
34
A team led from the Instituto de Astrofísica de Canarias (IAC) has found the most precise way ever to measure the rate at which stars form in galaxies using their radio emission at 1-10 Gigahertz frequency range.
Astronomy
Feb 21, 2017
0
3875
ESA's XMM-Newton has found a pulsar – the spinning remains of a once-massive star – that is a thousand times brighter than previously thought possible.
Astronomy
Feb 21, 2017
3
906
The more massive, or full of stars, a galaxy is, the faster the stars in it are formed. This seems to be the general rule, which is contradicted, however, by some abnormal cases, for example thin (not massive) galaxies that ...
Astronomy
Dec 13, 2016
3
9
Like cosmic ballet dancers, the stars of the Pleiades cluster are spinning. But these celestial dancers are all twirling at different speeds. Astronomers have long wondered what determines the rotation rates of these stars.
Astronomy
Aug 12, 2016
0
1936
An International team led by scientists at ETH Zurich in Switzerland used the W. M. Keck Observatory to study the role of star formation rates in metal contents of distant galaxies. What they discovered is the amount of metals ...
Astronomy
May 11, 2016
2
86
The gas in galaxies is typically seen to be moving at very rapid, even supersonic velocities, providing clear evidence that the medium is highly turbulent. Looking more closely at gas clouds in our own Milky Way, astronomers ...
Astronomy
May 9, 2016
57
69
