Galaxy - spaceanswers.com
New image release: Hubble’s weird perspective of a spiral galaxy Believe it or not, this long, luminous streak, speckled with bright blisters and pockets of material, is a structure like our Milky Way
‘Wobbling’ galaxies upset our understanding of dark matter
2017年10月27日 · Within each of the dense cores of the clusters is a massive galaxy called the “brightest cluster galaxy” (BCG). If the cold dark matter theory is correct, then once a galaxy cluster is stabilised after a merger event, a BCG should not be able to move. This is due to the enormous gravitational influence of the dark matter keeping it in place.
Astronomers get rare chance to see ancient galaxy’s demise
2017年7月4日 · “Essentially the larger galaxy is removing the fuel that the Little Cub needs to form stars, which will eventually shut down star formation and lead to the smaller galaxy’s demise.” Astronomers also believe that the gas that makes up this dwarf galaxy originates from the same gas expelled from the Bin Bang, as it seems to have been ...
Photonics are now being used in the search for extraterrestrial ...
2018年9月28日 · A group of students have been scrutinising the Andromeda galaxy using new techniques in the hope to find any signal of intelligent life comments The Andromeda galaxy is the closest galaxy to our own, being just 2.5 million light years away.
Streams of cool gas spiral into young galaxies to fuel the birth of ...
2019年7月2日 · The findings provide the best evidence to date for the cold-flow model of galaxy formation, which basically states that cool gas can flow directly into forming galaxies, where it is converted into stars. Before this model came into popularity, researchers had proposed that galaxies pull in gas and heat it up to extremely high temperatures.
Milky Way ‘not a typical galaxy’, new study finds - All About Space
“We use the Milky Way and its surroundings to study absolutely everything,” says Yale astrophysicist Marla Geha, lead astronomer of the research. “Hundreds of studies come out every year about dark matter, cosmology, star formation, and galaxy formation, using the Milky Way as a guide. But it’s possible that the Milky Way is an outlier.”
Galaxies swell up as they age - All About Space
2018年4月24日 · The latest result in galaxy evolution by an international team of researchers shows that as galaxies age, they grow larger and puffier. The team, including researchers from the Australian National University (ANU) and the University of Sydney, studied over 800 galaxies of all kinds in order to deduce the effects of time on a galaxy’s size.
How collisions between galaxies can lead to their demise
2019年2月28日 · But this sudden burst of activity can create an unstable environment. Shockwaves or powerful winds produced by the growing black hole can sweep through the galaxy, ejecting large quantities of gas and shutting down star formation. Sufficiently powerful or repetitive outflows can hinder the galaxy’s ability to make new stars.
Galaxy owner? Android user? Get yourself the Bookazine
You can get The Samsung Galaxy Book here. Android For Beginners shows you how to set up your device and personalise it according to your preferences, how to work with all your default apps, get the most out of all the Google apps (Google Now, Google Maps, Google Drive, etc.) and most-used third-party apps (Instagram, Dropbox, Facebook, etc.) on ...
Astronomers detect the most distant oxygen ever discovered
2018年5月17日 · So for oxygen to be detected in a galaxy just 500 million years after the Big Bang, this implies that earlier generations of stars must of synthesised it. In an attempt to find out when these stars could have existed, astronomers used infrared data collected by NASA/ESA’s Hubble Space Telescope and NASA’s Spitzer Space Telescope to model ...