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.....»»
What Made This Bizarre ‘Dandelion’ Supernova?
A strange supernova remnant first appeared as a “guest star” seen in 1181 by sky watchers in China and Japan.....»»
Innovative model offers new way for astronomers to analyze powerful space explosions
Astrophysical explosions are, to give a few examples, driven by the collapse of the iron core of a massive star (known as a core-collapse supernova), the consumption of spaghettified stellar remains by a massive black hole (known as a tidal disruptio.....»»
Scientists provide direct evidence of breakdown of spin statistics in ion-atom charge exchange collisions
Since the first X-ray image of a comet was reported using an X-ray telescope in 1996, the investigation of charge exchange in collisions between highly charged ions and atoms or molecules has emerged as a hot research topic......»»
Seeing a black hole"s jet in a new light: A look at high-energy particles being blasted across space
Research led by the University of Michigan has pored over more than two decades' worth of data from NASA's Chandra X-Ray Observatory to show there's new knotty science to discover around black holes......»»
Thunderstorm Gamma-Ray Flashes May Be Missing Link for Lightning Bolts
Observations from a retrofitted spy plane hint at a connection between powerful gamma-ray flashes and a thunderstorm’s lightning.....»»
You Asked: Blu-ray picture fix, lossy vs. lossless, and AI self-calibration
On this episode of You Asked: What's the best 4K Blu-ray picture? Which is better: lossless or Atmos? And is an AI self-calibrating TV possible?.....»»
Apple’s next-gen M4 Macs look set to embrace serious gaming
Apple's next-generation M4 silicon will serve ray tracing, even on the Mac mini. We might also get some relief with Apple's stingy RAM approach, too......»»
Astronomers take a close look at a dandelion-shaped supernova and zombie star
In 1181, a new star shone near the Cassiopeia constellation for six months before disappearing. This event, recorded as a "guest star" by Chinese and Japanese observers almost a millennium ago, has puzzled astronomers for centuries. It is one of a fe.....»»
Blasts from the past: New insights from old space storms
On 4 August 1972, a burst of solar plasma rocked Earth's magnetic field after hurtling through space for about 14.6 hours—the fastest sun-to-Earth plasma journey ever recorded. The resulting space storm, one of several that occurred from 2 to 11 Au.....»»
Your politics can affect whether you click on sponsored search results, new research shows
American businesses spend close to US$100 billion each year to secure top advertising spots in search engine results—even though it's not exactly a secret that most online shoppers scroll right past them......»»
Astronomers discover a bright pulse that may be a fast radio burst
Searching for pulsars using the Large Phased Array (LPA) radio telescope, Russian astronomers have detected a bright pulse at a frequency of 111 MHz, which appears to be a fast radio burst event. The finding was reported in a research paper published.....»»
Most Powerful Gamma Rays Ever Seen in Galaxy"s Center Detected by Scientists
Most Powerful Gamma Rays Ever Seen in Galaxy"s Center Detected by Scientists.....»»
Her billionaire marriage broke up. Her VP campaign fizzled. Now she’s a Trump-world star.
Her billionaire marriage broke up. Her VP campaign fizzled. Now she’s a Trump-world star......»»
X-ray spectroscopy study maps ultrafast charge delocalization in aqueous environments
The movement of electron density is a subject of interest for chemists worldwide, as substances interact through electrons. These processes are ultrafast and traditionally require time-resolved experiments at the attosecond level to study and describ.....»»
Betelgeuse Betelgeuse? Bright star Betelgeuse likely has a "Betelbuddy" stellar companion
One of the brightest stars in the night sky, Betelgeuse, may not be on the brink of exploding as a supernova, according to a new study of the star's brightening and dimming. Instead, recent research shows that the observed pulsing of the starlight is.....»»
Despite massive security spending, 44% of CISOs fail to detect breaches
Despite global information security spending projected to reach $215 billion in 2024, 44% of CISOs surveyed reported they were unable to detect a data breach in the last 12 months using existing security tools, according to Gigamon. Blind spots under.....»»
2024 Head of the Charles Regatta: Race schedule, spectator spots, where to park, how to get around
2024 Head of the Charles Regatta: Race schedule, spectator spots, where to park, how to get around.....»»
Imaging X-ray Polarimetry Explorer helps researchers determine shape of black hole corona
New findings using data from NASA's IXPE (Imaging X-ray Polarimetry Explorer) mission offer unprecedented insight into the shape and nature of a structure important to black holes called a corona. The findings are published in The Astrophysical Journ.....»»
A method to switch between optical pulling and pushing forces by altering the shape of Fermi arcs in Weyl systems
Optical forces, which act like an invisible "hand," are capable of precisely controlling tiny particles. Optical tweezers, a well-known tool, use this force to capture and manipulate small objects such as cells, bacteria, and viruses. This effect is.....»»
Catching prey with grappling hooks and cannons: The unusual weapons arsenal of a predatory marine bacterium
Countless bacteria call the vastness of the oceans home, and they all face the same problem: the nutrients they need to grow and multiply are scarce and unevenly distributed in the waters around them. In some spots they are present in abundance, but.....»»