Gravity can accelerate the homogenization of space-time as the universe evolves. This insight is based on theoretical studies of the physicist David Fajman of the University of Vienna. The mathematical methods developed within ...
General Physics
Sep 24, 2020
14
1080
It's high noon for the humble leap second. After ten years of talks, governments are headed for a showdown vote this week on an issue that pits technological precision against nature's whims.
Earth Sciences
Jan 17, 2012
17
0
We've now seen the first data from the James Webb Space Telescope. It has observed the atmospheres of distant planets, groups of nearby galaxies, galaxy light bent by unseen dark matter, and clouds of gas and dust in stellar ...
Astronomy
Aug 1, 2022
2
228
The nature of dark energy is one of the most important unsolved problems in all of science. But what, exactly, is dark energy, and why do we even believe that it exists?
Astronomy
Apr 23, 2015
23
167
The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be added.
Space Exploration
Jun 26, 2015
11
4119
Special relativity is one of the most strongly validated theories humanity has ever devised. It is central to everything from space travel and GPS to our electrical power grid. Central to relativity is the fact that the speed ...
General Physics
Jan 11, 2021
29
38
Scientists and government representatives meeting at a conference in France voted on Friday to scrap leap seconds by 2035, the organization responsible for global timekeeping said.
General Physics
Nov 18, 2022
0
184
Our understanding of the universe may not be expanding as much as the universe itself. In some cases, our theories about cosmic inflation may feel as if they are deflating into a black hole.
General Physics
Jul 20, 2022
0
854
(PhysOrg.com) -- According to the Times Higher Education World University Rankings, California Institute of Technology, or Caltech, has beaten out Harvard to take the top spot for the first time since they started this ranking ...
The Minor Planet Centre has just announced that the Earth has been orbited by a second moon for the past three years or so. But while excitement about the discovery is growing, it is important to keep in mind that this moon ...
Space Exploration
Feb 27, 2020
0
253
