The first catalogue of more than a billion stars from ESA's Gaia satellite was published today – the largest all-sky survey of celestial objects to date.
Astronomy
Sep 14, 2016
3
2541
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but with more precise data has come a conundrum: Estimates based on measurements within our local universe don't agree with extrapolations ...
Astronomy
Mar 8, 2021
9
481
Using the power and synergy of two space telescopes, astronomers have made the most precise measurement to date of the universe's expansion rate.
Astronomy
Jul 12, 2018
55
532
The universe is expanding; we've had evidence of that for about a century. But just how quickly celestial objects are receding from each other is still up for debate.
Astronomy
Jun 30, 2023
147
1569
Astronomers from the University of Cambridge have developed a new, highly accurate method of measuring the distances between stars, which could be used to measure the size of the galaxy, enabling greater understanding of ...
Astronomy
Sep 4, 2015
1
1433
The universe is expanding but astrophysicists aren't sure exactly how fast that expansion is happening—not because there aren't answers, but rather because the answers they could give don't agree.
Astronomy
Nov 17, 2020
2
1273
(PhysOrg.com) -- Astronomers have turned up the first direct proof that "standard candles" used to illuminate the size of the universe, termed Cepheids, shrink in mass, making them not quite as standard as once thought. The ...
Astronomy
Jan 12, 2011
43
0
New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding ...
Astronomy
Dec 11, 2018
0
119
In December 2022, astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) confirmed the discovery of one of the most distant galaxies ever observed. The faint radio light ALMA captured began its journey ...
Astronomy
Apr 4, 2023
0
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