Six cosmic catastrophes that could wipe out life on Earth
3 minutes ago
If you ask yourself what the biggest threat to human existence is you'd probably think of nuclear war, global warming or a large-scale pandemic disease. But assuming we can overcome such challenges, are we really safe?
A new twist on fusion power could help bring limitless clean energy
Jan 17, 2017
In a world struggling to kick its addiction to fossil fuels and feed its growing appetite for energy, there's one technology in development that almost sounds too good to be true: nuclear fusion.
Study uses an electric field to create magnetic properties in nonmagnetic material
Jan 12, 2017
In a proof-of-concept study published in Nature Physics, researchers drew magnetic squares in a nonmagnetic material with an electrified pen and then "read" this magnetic doodle with X-rays.
Astronomers discover molecular and atomic clouds associated with a superbubble in LMC
Jan 11, 2017 report
(Phys.org)—An international team of astronomers has uncovered molecular and atomic gas clouds associated with the superbubble known as 30 Doradus C, which is located in the Large Magellanic Cloud (LMC). The findings were ...
Physicists make first-ever direct observation of collisional plasmoid instability during magnetic reconnection
Jan 09, 2017
Physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have for the first time directly observed a phenomenon that had previously only been hypothesized to exist. The phenomenon, plasmoid ...
Scientists prepare for the great American eclipse of August 21
Jan 09, 2017
Astronomer Jay Pasachoff is busy exciting people about their chance to experience the August 21, 2017, total solar eclipse, whose path of totality will sweep across the United States from coast to coast. He is leading an ...
The case of the 'missing link' neutron star
Jan 06, 2017
Like anthropologists piecing together the human family tree, astronomers have found that a misfit "skeleton" of a star may link two different kinds of stellar remains. The mysterious object, called PSR J1119-6127, has been ...
Electrons 'puddle' under high magnetic fields, study reveals
Jan 04, 2017
Olympic figure skaters and electrons have a lot in common. In figure skating competitions, the "free skate" segment gives the skater the flexibility to travel in whichever pattern he or she chooses around the rink. Similarly, ...
Image: Northern lights over Canada
Dec 28, 2016
Just hours after the winter solstice, a mass of energetic particles from the Sun smashed into the magnetic field around Earth. The strong solar wind stream stirred up a display of northern lights over northern Canada.
Biologist disputes conclusions of recent papers on biological magnetism
Dec 23, 2016
Caltech biologist Markus Meister is disputing recent research claiming to have solved what he describes as "the last true mystery of sensory biology"—the ability of animals to detect magnetic fields. This "magnetic sense" ...