Flick a switch on a dark winter day and your office is flooded with bright light, one of many everyday miracles to which we are all usually oblivious.
Quantum Physics
May 12, 2016
5
1705
Astronomers have used a planet-hunting satellite to see a white dwarf abruptly switching on and off for the first time.
Astronomy
Oct 18, 2021
1
1405
A hypnotizing vortex? A peek into a witch's cauldron? A giant space-spider web?
Astronomy
Oct 28, 2021
1
364
For over a century and a half, Eta Carinae has been one of the most luminous – and most enigmatic – stars of the southern Milky Way.
Astronomy
Jan 30, 2019
2
3118
(PhysOrg.com) -- A new NASA Hubble Space Telescope image shows globular cluster NGC 1846, a spherical collection of hundreds of thousands of stars in the outer halo of the Large Magellanic Cloud, a neighboring dwarf galaxy ...
Astronomy
Nov 22, 2011
3
0
A color developed by Egyptians thousands of years ago has a modern-day application as well – the pigment can boost energy efficiency by cooling rooftops and walls, and could also enable solar generation of electricity via ...
General Physics
Oct 10, 2018
0
877
About 2.6 million years ago, an oddly bright light arrived in the prehistoric sky and lingered there for weeks or months. It was a supernova some 150 light years away from Earth. Within a few hundred years, long after the ...
Astronomy
Dec 11, 2018
19
512
The evolving periodicity of the brightness of certain types of stars can now be described mathematically.
Mathematics
Apr 26, 2021
0
718
Betelgeuse, the bright star in the constellation of Orion, has been fascinating astronomers in the recent months because of its unusually strong decline in brightness. Scientists have been discussing a number of scenarios ...
Astronomy
Jun 29, 2020
3
450
Chiral molecules are those that have two versions that are mirror images, like our right and left hands. These molecules have the same structure but different properties when they interact with other molecules, including ...
Analytical Chemistry
Aug 18, 2023
0
150
