Stars like the Sun begin their lives as cold, dense cores of dust and gas that collapse under the influence of gravity until nuclear fusion is ignited. These cores contain hundreds to thousands of solar-masses of material ...
Astronomy
Jan 18, 2016
10
1099
Time-lapse imaging can make complicated processes easier to grasp—think of a stitched-together sequence of photos that chronicles the construction of a building. Now, scientists from the Department of Energy's Lawrence ...
Cell & Microbiology
Sep 2, 2015
3
62
The combination of ab-initio numerical experiments and theory shows that optical tunnelling of an electron from an atom can occur instantaneously.
General Physics
Aug 25, 2015
18
58
An international team of physicists has used carbon nanotubes to enhance the efficiency of laser-driven particle acceleration. This significant advance brings compact sources of ionizing radiation for medical purposes closer ...
General Physics
Aug 7, 2015
0
40
Near the end of the movie Apollo 13, which depicts the harrowing journey of the three astronauts aboard the aborted 1970 lunar mission, the tension mounts in textbook fashion. As the spacecraft hurdles into Earth's atmosphere ...
Plasma Physics
Jun 16, 2015
3
1478
It is becoming possible to image complex systems in 3-D with near-atomic resolution on ultrafast timescales using extremely intense X-ray free-electron laser (XFEL) pulses.
General Physics
Dec 17, 2014
0
0
(Phys.org) —When a multiply charged aluminum or magnesium cation encounters a single water molecule, the result can be explosive. The metal ion rips an electron from the water molecule, causing a molecular-level explosion, ...
Materials Science
Jun 2, 2014
0
0
Capitalizing on the ability of an organism to evolve in response to punishment from a hostile environment, scientists have coaxed the model bacterium Escherichia coli to dramatically resist ionizing radiation and, in the ...
Biochemistry
Mar 14, 2014
0
0
Some 30 years ago, astronomers found that regions of ionized gas around young high mass stars remain small (under a third of a light-year) for ten times longer than they should if they were to expand as expected in simple ...
Astronomy
Feb 6, 2014
5
0
Astronomers using the combined power of the Atacama Large Millimeter/submillimeter Array (ALMA) telescope and NASA's Hubble Space Telescope have discovered a far-flung trio of primitive galaxies nestled inside an enormous ...
Astronomy
Nov 21, 2013
4
0
