Researchers in Caltech's Andrew and Peggy Cherng Department of Medical Engineering have made a major step forward in medical imaging by taking inspiration from the field of astronomy.
Optics & Photonics
Feb 27, 2023
0
57
NASA will launch Israel's first space telescope mission, the Ultraviolet Transient Astronomy Satellite (ULTRASAT). ULTRASAT, an ultraviolet observatory with a large field of view, will investigate the secrets of short-duration ...
Astronomy
Feb 24, 2023
0
13
When optical beams, consisting of photons, travel through fibers, they cause vibrations that generate acoustic waves, consisting of phonons. The phenomenon, called Brillouin scattering, has been harnessed by researchers to ...
Optics & Photonics
Feb 17, 2023
1
610
Scientists try to unravel the birth, growth and power of black holes, some of the most forceful yet difficult-to-detect objects in our universe.
Astronomy
Feb 13, 2023
1
86
An exciting prospect in modern optics is to exploit patterns of light—how the light looks in its many degrees of freedom—often referred to as "structured light." Each distinct pattern could form an encoding alphabet for ...
Optics & Photonics
Feb 7, 2023
1
131
The cosmic zoo contains objects so bizarre and extreme that they generate gravitational waves. Scorpius X-1 is part of that strange collection. It's actually a binary pair: a neutron star orbiting with a low-mass stellar ...
Astronomy
Jan 31, 2023
0
73
On Oct. 5, 2020, the rapidly rotating corpse of a long-dead star about 30,000 light years from Earth changed speeds. In a cosmic instant, its spinning slowed. And a few days later, it abruptly started emitting radio waves.
Astronomy
Jan 27, 2023
27
496
Scientists have advanced in discovering how to use ripples in space-time known as gravitational waves to peer back to the beginning of everything we know. The researchers say they can better understand the state of the cosmos ...
General Physics
Jan 20, 2023
51
5296
We can frequently find in our daily lives a localized wave structure that maintains its shape upon propagation—picture a smoke ring flying in the air. Similar stable structures have been studied in various research fields ...
Optics & Photonics
Jan 19, 2023
1
5587
Sticking swabs up our noses and down our throats to confirm or deny whether we are infected with the coronavirus—almost all of us have done it multiple times in the last couple of years.
Bio & Medicine
Jan 18, 2023
0
25
