Astronomers have a model of how galaxy cluster collisions go through different stages, taking on various shapes. A blunt body shape turns into a sharp cone, which turns into a tongue-like shape. The first and last have been ...
Astronomy
Dec 7, 2021
0
306
Stars form by the gravitational contraction of clouds of gas in space and can have various masses. Massive stars, together with many other stars, may form a huge star cluster (a group of more than 10,000 stars). The formation ...
Astronomy
May 7, 2021
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808
A lot is known about galaxies. We know, for instance, that the stars within them are shaped from a blend of old star dust and molecules suspended in gas. What remains a mystery, however, is the process that leads to these ...
Astronomy
Jan 25, 2021
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2317
It was previously thought that collisions between galaxies would necessarily add to the activity of the massive black holes at their centers. However, researchers have performed the most accurate simulations of a range of ...
Astronomy
Jan 25, 2021
0
56
An international team of researchers led by Leiden University (the Netherlands) has mapped nine gigantic collisions of galaxy clusters. The collisions took place seven billion years ago and could be observed because they ...
Astronomy
Nov 2, 2020
3
390
NGC 1614, captured here by the NASA/ESA Hubble Space Telescope, is an eccentrically shaped galaxy ablaze with activity. The galaxy resides about 200 million light-years from Earth and is nestled in the southern constellation ...
Astronomy
Aug 17, 2020
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39
In celebration of Halloween, this new image from the NASA/ESA Hubble Space Telescope captures two galaxies of equal size in a collision that appears to resemble a ghostly face. This observation was made on 19 June 2019 in ...
Astronomy
Oct 28, 2019
3
960
Astronomers using data from NASA's Chandra X-Ray Observatory and other telescopes have put together a detailed map of a rare collision between four galaxy clusters. Eventually all four clusters—each with a mass of at least ...
Astronomy
Oct 25, 2019
2
377
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a celestial fireworks display ...
Astronomy
Nov 7, 2017
14
312
This image from the NASA/ESA Hubble Space Telescope shows the unusual galaxy IRAS 06076-2139, found in the constellation Lepus (The Hare). Hubble's Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) instruments ...
Astronomy
May 12, 2017
0
221
