Without the light pressure from nuclear fusion to hold back the mass of the star, the outer layers compress inward in an instant. The star dies, exploding violently as a supernova.
Astronomy
Aug 11, 2015
7
63
Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth. NASA's Hubble Space Telescope's exquisite high resolution and ...
Astronomy
Aug 6, 2015
12
103
The ghostly shells of galaxy ESO 381-12 are captured here in a new image from the NASA/ESA Hubble Space Telescope, set against a backdrop of distant galaxies. The strikingly uneven structure and the clusters of stars that ...
Astronomy
Jul 9, 2015
0
27
New observations with ESO's Very Large Telescope have revealed thatthe giant elliptical galaxy Messier 87 has swallowed an entire medium-sized galaxy over the last billion years. For the first time a team of astronomers has ...
Astronomy
Jun 25, 2015
6
62
This elliptical galaxy was discovered in March 1781 and lies about 60 million light-years away from Earth in the constellation of Virgo (The Virgin). The galaxy is part of the very heavily populated center of the Virgo Cluster, ...
Astronomy
Jun 8, 2015
0
27
Everything eventually dies, even galaxies. So how does that happen?
Astronomy
Jun 5, 2015
29
97
Scientists using NASA's Hubble Space Telescope have discovered that the immense halo of gas enveloping the Andromeda galaxy, our nearest massive galactic neighbor, is about six times larger and 1,000 times more massive than ...
Astronomy
May 7, 2015
31
5838
Surprising gravitational similarities between spiral and elliptical galaxies have been discovered by an international team, including astronomers from Swinburne University of Technology, implying the influence of hidden forces.
Astronomy
Apr 30, 2015
261
2584
We know of about two dozen runaway stars, and have even found one runaway star cluster escaping its galaxy forever. Now, astronomers have spotted 11 runaway galaxies that have been flung out of their homes to wander the void ...
Astronomy
Apr 23, 2015
52
1514
A discovery by MPIA graduate student Athanasia Tsatsi has changed astronomers' understanding of how mergers of two galaxies can produce unusual stellar motion in the resulting elliptical galaxies, with the central region ...
Astronomy
Mar 24, 2015
1
46
