Fermi spots a supernova"s "fizzled" gamma-ray burst
On Aug. 26, 2020, NASA's Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe. Lasting only about a second, it turned out to be one for the record.....»»
NASA Mars orbiter spots China’s rover on Martian surface
A NASA satellite has captured a dramatic view of China’s Zhurong rover just a few weeks after it reached the surface of Mars......»»
MSI brings back the GeForce GT 730 amid graphics card shortages
As reported by Tom's Hardware, the MSI GeForce GT 730 (N730K-2GD3H/LPV1) is the 13th installment in MSI's GeForce GT 730 lineup. The 700 series first arrived in 2013 and has covered the Fermi, Kepler, and Maxwell architectures......»»
How viruses mutate and create new variants
As the COVID-19 pandemic continues, new variants of the SARS-CoV-2 virus pop up, and some lead to increasing infections. The main new variants—named Alpha, Beta, and Gamma and first identified in Britain, South Africa, and India, respectively—hav.....»»
X-ray scanner spots cancers and analyzes drugs in minutes
Engineers at Duke University have demonstrated a prototype X-ray scanning machine that reveals not just the shape of an object but its molecular composition. With unprecedented resolution and accuracy, the technology could revolutionize a wide range.....»»
CHIME telescope detects more than 500 mysterious fast radio bursts in its first year of operation
To catch sight of a fast radio burst is to be extremely lucky in where and when you point your radio dish. Fast radio bursts, or FRBs, are oddly bright flashes of light, registering in the radio band of the electromagnetic spectrum, that blaze for a.....»»
Gulf Stream intrusions feed diatom hot spots
The Gulf Stream, which has reliably channeled warm water from the tropics northward along the East Coast of North America for thousands of years, is changing. Recent research shows that it may be slowing down, and more and more often, the current is.....»»
Astronomers get closest look yet at epic explosion in our ‘cosmic backyard’
Gamma-ray bursts are the most powerful explosions in the universe, a million trillion times as bright as the sun, and scientists just observed one up close......»»
Front-row view reveals exceptional cosmic explosion
Scientists have gained the best view yet of the brightest explosions in the universe: A specialized observatory in Namibia has recorded the most energetic radiation and longest gamma-ray afterglow of a so-called gamma-ray burst (GRB) to date. The obs.....»»
Researchers model new method of generating gamma-ray combs
Skoltech researchers used the resources of the university's Zhores supercomputer to study a new method of generating gamma-ray combs for nuclear and X-ray photonics and spectroscopy of new materials. The paper was published in the journal Physical Re.....»»
Scientists tap supercomputing to study exotic matter in stars
At the heart of some of the smallest and densest stars in the universe lies nuclear matter that might exist in never-before-observed exotic phases. Neutron stars, which form when the cores of massive stars collapse in a luminous supernova explosion,.....»»
Move Over, Death Valley: These Are the Two Hottest Spots On Earth
sciencehabit writes: Death Valley holds the record for the highest air temperature on the planet: On July 10, 1913, temperatures at the aptly named Furnace Creek area in the California desert reached a blistering 56.7C (134.1F). Average summer temper.....»»
New detector finds gamma rays from surprising cosmic sources
Astrophysicist Cao Zhen opens a steel hatch on a windswept Tibetan Plateau and climbs down a ladder into inky darkness. His flashlight picks out a boat floating on a pool of purified water above thousands of glittering orbs the size of beachballs......»»
Kleiner spots Spot Meetings $5M to modernize walk-and-talks for the Zoom generation
Trees, those deciduous entities you can occasionally see outdoors when not locked down or strapped down at a desktop ruminating on a video call, have long been the inspiration for fresh new ideas. Stories abound of how founders built companies while.....»»
Nuclear terrorism could be intercepted by neutron-gamma detector that pinpoints source
Scanning technology aimed at detecting small amounts of nuclear materials was unveiled by scientists in Sweden today, with the hope of preventing acts of nuclear terrorism......»»
What causes pools below waterfalls to periodically fill with sediment?
Deep pools below waterfalls are popular recreational swimming spots, but sometimes they can be partially or completely filled with sediment. New research showed how and why pools at the base of waterfalls, known as plunge pools, go through natural cy.....»»
Highest Ever Energy Light Captured By Chinese Mountain Observatory
sciencehabit writes: Using an observatory on the edge of the Tibetan Plateau, astronomers have spotted the highest energy light ever, gamma ray photons up to 1.4 petaelectronvolts (PeV). They have traced these extreme photons back to a dozen of their.....»»
Observatory discovers a dozen PeVatrons and photons exceeding 1 PeV, launches ultra-high-energy gamma astronomy era
China's Large High Altitude Air Shower Observatory (LHAASO)—one of the country's key national science and technology infrastructure facilities—has found a dozen ultra-high-energy (UHE) cosmic accelerators within the Milky Way. It has also detecte.....»»
Worsening algae bloom on Florida"s Lake Okeechobee threatens coasts again
The scene at Pahokee marina on Lake Okeechobee last week was a warning sign: A thick mat of algae in various shades of green, brown, gray and fluorescent blue covered the area around boat slips. In some spots, the gunk was so dense it stuck out 2 inc.....»»
Study describes new mechanism for terminating transcription of DNA into RNA in bacteria
A bacterial protein helps to stop transcription—the process of making RNA copies of DNA to carry out the functions of the cell—by causing the cellular machinery that transcribes the DNA to pause at the appropriate spots in the genome. The protein.....»»
StarCraft and Microsoft Flight Simulator among latest inductees into the Video Game Hall of Fame
The Museum back in March narrowed the field down to just a dozen finalists. Classics like Pole Position, Guitar Hero, Portal and Call of Duty all came close but in the end, there were only four spots and they went to Microsoft Flight Simulator, StarC.....»»