The first JWST spectrum of the GRB 221009A afterglow
Gamma-ray bursts are the most energetic and luminous events known to occur in the Universe. Short-lived flashes of gamma rays that typically last from a a tenth of a second to less than an hour, gamma-ray bursts may for a brief period of time outshin.....»»
Researchers uncover natural variation in wild emmer wheat for broad-spectrum disease resistance
Bread wheat is one of the most important staple crops for millions of people and is apparently the largest cultivated and traded cereal worldwide. Bread wheat is a hexaploid species with three subgenomes (2n = 6x = 42, AABBDD) that has undergone two.....»»
After 48 years, Zilog is killing the classic standalone Z80 microprocessor chip
Z80 powered Game Boy, ZX Spectrum, Pac-Man, and a 1970s PC standard based on CP/M. Enlarge / A cropped portion of a ca. 1980 ad for the Microsoft Z80 SoftCard, which allowed Apple II users to run the CP/M operating system. (credi.....»»
James Webb Space Telescope data pinpoint possible aurorae on a cold brown dwarf
Using new observations from the James Webb Space Telescope (JWST), astronomers have discovered methane emission on a brown dwarf, an unexpected finding for such a cold and isolated world. Published in the journal Nature, the findings suggest that thi.....»»
A rechargeable nanotorch: Afterglow luminescence imaging tracks cell-based microrobots in real time
An afterglow luminescent nanoprobe opens up new possibilities for imaging living cells. As a research team reports in the journal Angewandte Chemie International Edition, their new "nanotorch" can continue to luminesce for more than 10 days after a s.....»»
Physicists solve puzzle about ancient galaxy found by Webb telescope
Last September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this galaxy. That's because.....»»
A supernova caused the BOAT gamma ray burst, JWST data confirms
But astronomers puzzled by the lack of signatures of expected heavy elements. Enlarge / Artist's visualization of GRB 221009A showing the narrow relativistic jets—emerging from a central black hole—that gave rise to the brig.....»»
Researchers confirm brightest gamma-ray burst of all time came from the collapse of a massive star
In October 2022, an international team of researchers, including Northwestern University astrophysicists, observed the brightest gamma-ray burst (GRB) ever recorded, GRB 221009A......»»
iRobot released two new Roombas under $300, including one that mops
iRobot has finally overhauled the affordable end of the Roomba spectrum. Here's tea on the Roomba Vac Essential and the mopping Roomba Combo Essential, both available for under $300. Two new Roombas under $300: In early April, iRobot released t.....»»
Four in five bird species cannot tolerate intense human pressures, data show
Currently 14% of the world's 11,000 bird species are threatened with extinction. A new study assessed the populations of bird species across a spectrum of landscapes from pristine habitats to human-dominated environments......»»
Cable lobby vows “years of litigation” to avoid bans on blocking and throttling
FCC sets April 25 vote to restore net neutrality rules repealed under Ajit Pai. Enlarge / FCC Chairwoman Jessica Rosenworcel at a spectrum policy event at the National Press Club on Monday, September 19, 2022. (credit: Getty Imag.....»»
Research team realizes magnonic frequency comb
The optical frequency comb, a spectrum of optical radiation composed of evenly spaced and phase-coherent narrow spectral lines, was initially developed for precise time and frequency measurements. Over the past two decades, it has shown broad applica.....»»
The search for the perfect coronagraph to find Earth 2.0
Studying exoplanets is made more difficult by the light from the host star. Coronagraphs are devices that block out the star light and both JWST and Nancy Grace Roman Telescope are equipped with them. Current coronagraphs are not quite capable of see.....»»
JWST observations explore molecular outflows of a nearby merging galaxy
Using the James Webb Space Telescope (JWST), an international team of astronomers has observed a nearby merging galaxy known as NGC 3256. Results of the observational campaign, presented March 21 on the pre-print server arXiv, yield essential informa.....»»
In a distant stellar system, the JWST sees the end of planet formation
Every time a star forms, it represents an explosion of possibilities. Not for the star itself; its fate is governed by its mass. The possibilities it signifies are in the planets that form around it. Will some be rocky? Will they be in the habitable.....»»
Starlink mobile plans hit snag as FCC dismisses SpaceX spectrum application
SpaceX application tossed but firm will get another shot in spectrum rulemaking. Enlarge / A Starlink user terminal during winter. (credit: Getty Images | AntaresNS) Starlink's mobile ambitions were dealt at least a temp.....»»
JWST observations shed more light on the nature of a distant galaxy cluster
Astronomers from the Nanjing University in China and elsewhere have performed high-resolution observations of a distant galaxy cluster known as CL J1001+0220 using the James Webb Space Telescope (JWST). The observational campaign, described in a pape.....»»
Consumers across political spectrum share food pricing frustrations
University of Illinois Urbana-Champaign agricultural and consumer economist Maria Kalaitzandonakes recently completed a survey of U.S. consumers, gauging their perceptions of market share and tendency to overcharge by different players in the food sy.....»»
James Webb Space Telescope captures the end of planet formation
The James Webb Space Telescope (JWST) is helping scientists uncover how planets form by advancing understanding of their birthplaces and the circumstellar disks surrounding young stars......»»
When the music changes, so does the dance: Controlling cooperative electronic states in kagome metals
Playing a different soundtrack is, physically speaking, only a minute change of the vibration spectrum, yet its impact on a dance floor is dramatic. People long for this tiny trigger, and as a salsa changes to a tango completely different collective.....»»
Astronomers detect an extremely red supermassive black hole in the early universe growing in the shadows
Analyzing images from the James Webb Space Telescope (JWST), a group of astronomers led by Dr. Lukas Furtak and Prof. Adi Zitrin from Ben-Gurion University of the Negev has detected an extremely red, gravitationally lensed supermassive black hole in.....»»