The amount of methane—a greenhouse gas 30 times more potent at trapping heat than carbon dioxide over 100 years—leaking from a huge U.S. oil and gas producing region is several times greater than the federal government ...
Environment
Mar 24, 2022
0
254
After the Big Bang, the universe, glowing brightly, was opaque and so hot that atoms could not form. Eventually cooling down to about minus 454 degrees Fahrenheit (-270 degrees Celsius), much of the energy from the Big Bang ...
Astronomy
Jan 12, 2022
0
317
NASA's Nancy Grace Roman Space Telescope has successfully passed its critical design review, signaling that all design and developmental engineering work is now complete.
Astronomy
Sep 30, 2021
1
317
A newly discovered visitor to the outer edges of our solar system has been shown to be the largest known comet ever, thanks to the rapid response telescopes of Las Cumbres Observatory. The object, which is named Comet C/2014 ...
Space Exploration
Jul 16, 2021
1
2570
A giant comet from the outskirts of our solar system has been discovered in six years of data from the Dark Energy Survey. Comet Bernardinelli-Bernstein is estimated to be about 1000 times more massive than a typical comet, ...
Space Exploration
Jun 28, 2021
4
3720
In 29 new scientific papers, the Dark Energy Survey examines the largest-ever maps of galaxy distribution and shapes, extending more than 7 billion light-years across the universe. The extraordinarily precise analysis, which ...
Astronomy
May 28, 2021
96
1037
Research from Penn's Department of Physics and Astronomy has produced the largest catalog of galaxy morphology classification to date. Led by former postdocs Jesús Vega-Ferrero and Helena Domínguez Sánchez, who worked ...
Astronomy
Apr 12, 2021
1
122
Data from the DESI (Dark Energy Spectroscopic Instrument) Legacy Imaging Surveys have revealed over 1200 new gravitational lenses, approximately doubling the number of known lenses. Discovered using machine learning trained ...
Astronomy
Jan 14, 2021
0
63
A new paper has shown how large structures in the distribution of galaxies in the Universe provide the most precise tests of dark energy and cosmic expansion yet.
General Physics
Jun 3, 2020
3
201
The observed acceleration of the Hubble expansion rate has been attributed to a mysterious "dark energy" which supposedly makes up about 70% of the universe. Professor Subir Sarkar from the Rudolf Peierls Centre for Theoretical ...
Astronomy
Nov 27, 2019
17
2428
