07 September 2016
Astronomers reveal the clearest picture yet of how the galaxy formed
... can use to understand the assembly process of the galaxy, and how galaxies in general formed." To produce this analysis, Carollo ...which predict that the oldest stellar populations of a galaxy undergoing mergers are mainly concentrated in the inner ...
06 January 2016
High-Energy X-rays show Andromeda Galaxy in a different light
... Hornschemeier of NASA Goddard, the principal investigator of the NuSTAR Andromeda studies. Andromeda, also known as M31, is a spiral galaxy like our own, but is slightly larger in size and at ‘only’ 2.5 million light-years away it is often thought...
08 March 2017
The most distant galaxy yet observed by ALMA gives insight into first stars
... of the very first stars. Known as A2744_YD4, this young galaxy appears to us as it was when the Universe was only 600...end of their lives. “Not only is A2744_YD4 the most distant galaxy yet observed by ALMA,” said Nicolas Laporte, “but the detection ...
08 March 2019
Astronomers weigh the galaxy with Hubble and Gaia
...from cosmological simulations what the distribution of mass in the galaxies should look like, so we can calculate how accurate ... of this is down to the approximately 200 billion stars in our galaxy; the rest we still can’t see, just infer. "Because ...
16 May 2018
Astronomers find stars forming just 250 million years after Big Bang
... and colleagues found that the observed brightness of the galaxy correlates to a period where the onset of star ... dawn occurred is akin to the Holy Grail of cosmology and galaxy formation. With these new observations of MACS1149-JD1 we are getting...
05 April 2018
Newly discovered black holes suggests thousands more in our galaxy
.... "It is going to significantly advance gravitational wave research because knowing the number of black holes in the centre of a typical galaxy can help in better predicting how many gravitational wave events may be associated with them. All the...
