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An automated supernova hunt is shedding new light on the death sequence of massive stars — specifically, the kind that self-destruct in Type IIn supernova explosions. Digging through the Palomar Transient Factory (PTF) data archive housed at the Department of Energy’s National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory (Berkeley Lab),…
With the discovery of the Higgs boson or something very like it under its belt, the world’s most powerful particle collider is ready to take a well-earned rest. The Large Hadron Collider (LHC) will shut down on 11 February ahead of around two years of upgrade work. The break, known as LS1 for ‘long stop…
Scientists have unearthed a jawbone from an ancient human ancestor in a cave in Serbia. The jawbone, which may have come from an ancient Homo erectus or a primitive-looking Neanderthal precursor, is more than 397,000 years old, and possibly more than 525,000 years old. The fossil, described today (Feb. 6) in the journal PLOS ONE,…
Nanomaterials, substances broken down by technology into molecule-size particles, are starting to enter the food chain through well-known food products and their packaging, but there is little acknowledgment by the companies using them, according to a new report from a nonprofit group that works to enhance corporate accountability. Some companies may not even know whether…
We see in stereo — our eyes, both on the same plane, see at the same time. This helps us see in 3-D. Whereas most fish have eyes on either side of their head and thus see a different image in each eye. A new study suggests moles, which live underground and are almost blind,…
Last week, a team found and collected microbes in a lake hidden under more than a half-mile of ice. Among other things, the discovery may shed light on what lies under the icy moons of Jupiter and Saturn. The newfound life-forms have little connection to life on the earth’s surface and many apparently survive by…
Several decades from now, an astronaut in a Mars colony might feel a bit hungry. Rather than reach for a vacuum-sealed food packet or cook up some simple greenhouse vegetables in a tiny kitchen, the astronaut would visit a microwave-sized box, punch a few settings, and receive a delicious and nutritious meal tailored to his…
Narcissism has long gotten a bad rap. Its unseemly reputation dates back at least to ancient Greek mythology, in which the handsome hunter Narcissus (who undoubtedly would be gloating over his present-day fame) discovered his own reflection in a pool of water and fell in love with it. Narcissus was so transfixed by his image…
Two species of worms have the same set of 20 neurons that control their foregut (a digestive organ located, naturally, near the front end of the worm. The way those neurons are wired, though, completely changes their behavior. Caenorhabditis elegans eats bacteria, while its worm cousin Pristionchus pacificus, while able to subsist on bacteria, also…
There’s a reason we only ever see one side of the Moon. It’s tidally locked to the Earth, presenting only one side to us as it orbits around the planet. Tidal locking is a fate that befalls lots of planetary bodies, and it can wreak havoc on the surface. Why does tidal locking happen? And…