Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis.
General Physics
Aug 4, 2017
7
818
(Phys.org)—Astronomers from the Paris Observatory in Meudon, France and the Notre Dame University – Louaize in Zouk Mosbeh, Lebanon, report that an A-type main-sequence star HR8844, could be a hybrid object between two ...
Research by Rice University Earth scientists suggests that virtually all of Earth's life-giving carbon could have come from a collision about 4.4 billion years ago between Earth and an embryonic planet similar to Mercury.
Earth Sciences
Sep 5, 2016
39
2765
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) detected a clear signal from oxygen in a galaxy located 13.1 billion light-years away from us. This is the most distant oxygen ever detected. Oxygen ...
Astronomy
Jun 16, 2016
2
3211
Our Earth consists of silicate rocks and an iron core with a thin veneer of water and life. But the first potentially habitable worlds to form might have been very different. New research suggests that planet formation in ...
Astronomy
Jun 7, 2016
59
1624
For centuries—in fact, since the Bronze Age began some 7,000 years ago—the creation of new metallic alloys has mostly been a trial-and-error process. Traditionally, one metal constituent was always dominant, with others ...
Condensed Matter
May 19, 2016
0
544
The lightest few elements in the periodic table formed minutes after the Big Bang. Heavier chemical elements are created by stars, either from nuclear fusion in their interiors or in catastrophic explosions. However, scientists ...
Astronomy
Mar 21, 2016
2
1211
In a letter published in the prestigious journal Nature Physics, a team of scientists from The Hebrew University of Jerusalem suggests a solution to the Galactic radioactive plutonium puzzle.
General Physics
Dec 8, 2015
5
3174
A supercomputer simulation of a mere 10 milliseconds in the collapse of a massive star into a neutron star proves that these catastrophic events, often called hypernovae, can generate the enormous magnetic fields needed to ...
Astronomy
Nov 30, 2015
1
1766
Scientists at Southwest Research Institute combined dynamical, thermal, and chemical models of the Moon's formation to explain the relative lack of volatile elements in lunar rocks. Lunar rocks closely resemble Earth rocks ...
Space Exploration
Nov 9, 2015
3
741
