By analyzing data from NASA's Rossi X-ray Timing Explorer (RXTE) satellite, astronomers have detected millihertz quasi-periodic oscillations from a low-mass neutron star X-ray binary designated EXO 0748−676. The finding ...
This image shows a quasar nicknamed the Teacup due to its shape. A quasar is an active galaxy that is powered by material falling into its central supermassive black hole. They are extremely luminous objects located at great ...
Astronomy
May 6, 2019
1
12
For the first time, researchers have demonstrated the creation of a beam of nanodroplets capable of delivering a variety of biological samples, from cell organelles to single proteins, virtually free from any contaminations, ...
Optics & Photonics
May 6, 2019
1
26
Using x-rays to reveal the atomic-scale 3-D structures of proteins has led to countless advances in understanding how these molecules work in bacteria, viruses, plants, and humans—and has guided the development of precision ...
Biochemistry
May 3, 2019
2
204
Based on the results from a set of telescopes, astronomers detected X-ray variability of the source AX J1949.8+2534 and confirmed that the object is a supergiant fast X-ray transient (SFXT). The finding is reported in a paper ...
Colliding a stream of electrons with laser light near an array of tiny silver structures could be the recipe for a new X-ray source that could revolutionize medical imaging and security scanning.
Optics & Photonics
Apr 30, 2019
0
24
On April 10, 2019, the Event Horizon Telescope (EHT) unveiled the first-ever image of a black hole's event horizon, the area beyond which light cannot escape the immense gravity of the black hole. That giant black hole, with ...
Astronomy
Apr 26, 2019
106
995
An international team of researchers used an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory to create the first detailed maps of two melatonin receptors that tell our bodies when to go to sleep ...
Biochemistry
Apr 24, 2019
0
556
Using a new X-ray technique, a team of researchers was able to watch in real time as a molecule split apart into two new molecules. The method could be used to look at chemical reactions that other techniques can't catch, ...
Materials Science
Apr 23, 2019
0
13
Next-generation devices based on molecular materials have the potential to efficiently use sunlight to produce electricity or to drive chemical reactions. In contrast to commercial solar cells, where absorption of light directly ...
Materials Science
Apr 22, 2019
0
8
