A pair of orbiting black holes millions of times the Sun's mass perform a hypnotic pas de deux in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot ...
Astronomy
Apr 15, 2021
3
14451
When it launches in the mid-2020s, NASA's Nancy Grace Roman Space Telescope will explore an expansive range of infrared astrophysics topics. One eagerly anticipated survey will use a gravitational effect called microlensing ...
Astronomy
Jan 25, 2021
0
146
Gravitational wave detectors have opened a new window to the universe by measuring the ripples in spacetime produced by colliding black holes and neutron stars, but they are ultimately limited by quantum fluctuations induced ...
General Physics
Sep 25, 2020
1
2636
Bochum cosmologists headed by Professor Hendrik Hildebrandt have gained new insights into the density and structure of matter in the universe. Several years ago, Hildebrandt had already been involved in a research consortium ...
Astronomy
Apr 28, 2020
45
168
Astronomers regularly observe gravitational waves (GW)—ripples in space and time—that are caused by pairs of black holes merging into one. Einstein's theory of gravity predicts that GW, which squeeze and stretch space ...
Astronomy
Feb 4, 2020
1
417
An international team of researchers has put a theory speculated by the late Stephen Hawking to its most rigorous test to date, and their results based on the observations using the Subaru Telescope have ruled out the possibility ...
Astronomy
Apr 2, 2019
9
623
Since the historic finding of gravitational waves from two black holes colliding over a billion light years away was made in 2015, physicists are advancing knowledge about the limits on the precision of the measurements that ...
General Physics
Mar 25, 2019
3
6060
Scientists at TU Wien, the University of Innsbruck and the ÖAW have for the first time demonstrated a wave effect that can lead to measurement errors in the optical position estimation of objects. The work now published ...
Optics & Photonics
Oct 16, 2018
0
446
RUDN astrophysicists have suggested an approach to simplify calculations of observable effects in the vicinity of black holes to which the mathematical apparatus of Einstein's classic relativity theory does not apply. The ...
Astronomy
Aug 22, 2018
0
31
When LIGO's twin detectors first picked up faint wobbles in their respective, identical mirrors, the signal didn't just provide first direct detection of gravitational waves—it also confirmed the existence of stellar binary ...
Astronomy
Apr 10, 2018
6
219
