A Mercury-like body smashed into a young Earth and gave our planet's core the radioactive elements necessary to generate a magnetic field, two Oxford geochemists say.
Earth Sciences
Apr 16, 2015
23
2154
(PhysOrg.com) -- Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and ...
Energy & Green Tech
Oct 7, 2009
14
0
Nearly half of the Earth's heat comes from the radioactive decay of materials inside, according to a large international research collaboration that includes a Kansas State University physicist.
Earth Sciences
Aug 2, 2011
15
0
UN Secretary General Antonio Guterres raised concerns Thursday that a concrete dome built last century to contain waste from atomic bomb tests is leaking radioactive material into the Pacific.
Environment
May 16, 2019
5
611
(Phys.org) —A team of astronomers using NASA's Hubble Space Telescope has taken an important step closer to finding the birth certificate of a star that's been around for a very long time.
Astronomy
Mar 7, 2013
28
0
In a recent study published in the Astrophysical Journal Letters, an international team of researchers led by the University of Cologne in Germany examined how solar flares erupted by the TRAPPIST-1 star could affect the ...
Planetary Sciences
Dec 27, 2022
0
829
What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes around the ...
General Physics
Jul 17, 2011
50
0
(PhysOrg.com) -- Our galaxy may be awash in homeless planets, wandering through space instead of orbiting a star.
Astronomy
Feb 23, 2012
31
0
A study of newly made chemical compounds is giving scientists a fresh understanding of an elusive element.
Materials Science
May 23, 2016
0
55
Physikalisch-Technische Bundesanstalt (PTB) researchers refute the assumption that the decay rate of some radioactive nuclides depends on the distance between the Earth and the Sun.
General Physics
Oct 10, 2014
16
0
