The Event Horizon Telescope Collaboration released the first image of a black hole with observations of the massive, dark object at the center of Messier 87, or M87, last April. This black hole has a mass of about 6.5 billion ...
Astronomy
Jan 7, 2020
20
1919
(PhysOrg.com) -- Building a nuclear gamma-ray laser has been a challenge for scientists for a long time, but a new proposal for such a device has overcome some of the most difficult problems. In the new study, Eugene Tkalya ...
Researchers at the Max Planck Institute for the Science of Light in Erlangen have discovered a new mechanism for guiding light in photonic crystal fibre (PCF). PCF is a hair-thin glass fibre with a regular array of hollow ...
Optics & Photonics
Feb 14, 2017
5
2206
For the first time, a team of scientists have calculated the distribution of all light energy contained within the Milky Way, which will provide new insight into the make-up of our galaxy and how stars in spiral galaxies ...
Astronomy
Jul 27, 2017
0
1475
(Phys.org) —When a massive star exhausts its fuel, it collapses under its own gravity and produces a black hole, an object so dense that not even light can escape its gravitational grip. According to a new analysis by an ...
Astronomy
May 3, 2013
16
0
Watching X-rays flung out into the universe by the supermassive black hole at the center of a galaxy 800 million light-years away, Stanford University astrophysicist Dan Wilkins noticed an intriguing pattern. He observed ...
Astronomy
Jul 28, 2021
22
5028
A team of researchers in Japan has engineered a mirror for X-rays that can be flexibly shaped, resulting in remarkable precision at the atomic level and increased stability.
Optics & Photonics
May 3, 2024
0
23
When the molecules that carry the genetic code in our cells are exposed to harm, they have defenses against potential breakage and mutations.
General Physics
Apr 7, 2017
0
3328
We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part because it's also rare in the universe. Unlike elements like carbon or iron, it cannot be created within ...
Astronomy
Jul 17, 2013
90
2
Astronomers have spotted three giant black holes within a titanic collision of three galaxies. Several observatories, including the Chandra X-ray Observatory and other NASA space telescopes, captured the unusual system.
Astronomy
Sep 25, 2019
24
2088
