News

Physicists Produce Matter and Antimatter from Photon Collisions

Two gold ions (red) move in opposite direction at 99.995% of the speed of light (v, for velocity, = approximately c, the speed of light). As the ions pass one another without colliding, two photons (γ) from the electromagnetic cloud surrounding the ions can interact with each other to create a matter-antimatter pair: an electron (e-) and positron (e+). Image credit: Brookhaven National Laboratory.
Aug 11, 2021 by News Staff

Physicists with the STAR Collaboration at Brookhaven National Laboratory’s Relativistic Heavy Ion Collider (RHIC) have produced definitive evidence for two phenomena predicted more than eight decades ago: production of matter and antimatter from photon collisions and polarization-dependent light-bending (birefringence) in a vacuum. Two gold ions (red) move in opposite direction at 99.995% of the speed of light (v, for velocity, = approximately c,...

read more...
Dragonfly was officially selected for flight by NASA as the fourth New Frontiers mission on 2019 June 27. Launch is planned for 2027, with Titan arrival in the mid-2030s, during the local northern hemisphere winter. Image credit: NASA.

NASA’s Dragonfly Mission to Saturn’s Moon Titan Has Big Science Goals

Aug 11, 2021 by News Staff

NASA’s Dragonfly mission will send a rotorcraft lander to the surface of Titan in the mid-2030s. Dragonfly was officially selected for flight by NASA...

On July 14, 2021, the Subaru Telescope captured more than a dozen meteors streaming from the same direction within a 10-second window. Image credit: Subaru Telescope / National Astronomical Observatory of Japan / Asahi Shimbun Company.

Subaru Telescope Captures Rare Meteor Outburst

Aug 11, 2021 by News Staff

On July 14, 2021, the Subaru-Asahi Sky Camera on the 8.2-m Subaru Telescope at the summit of Maunakea, Hawai’i, captured a rare meteor outburst associated...

Flower of the western false asphodel (Triantha occidentalis) at Cypress Provincial Park, British Columbia, Canada. Image credit: Danilo Lima.

New Lineage of Carnivorous Plants Discovered

Aug 10, 2021 by News Staff

The newly-identified lineage of carnivorous plants is represented by the western false asphodel (Triantha occidentalis), a species of flowering plant from...

New Feathered Dinosaur Species Revealed

Aug 10, 2021 by Enrico de Lazaro

Paleontologists in Brazil have unveiled a new species of unenlagiine dromaeosaurid dinosaur from the Maastrichtian age of the Cretaceous period. An artist’s...

The two galaxies Norris et al. think are responsible for the streams of electrons (shown as curved arrows) that form the ‘dancing ghosts;’ but the authors don’t understand what is causing the filament labelled as 3. Image credit: Jayanne English & Ray Norris / EMU Project / Dark Energy Survey.

ASKAP Radio Telescope Spots ‘Dancing Ghost’ Galaxies

Aug 10, 2021 by News Staff

Astronomers using CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) telescope, a radio telescope situated about 800 km north of Perth, in...

Pulchritudo attenboroughi. Image credit: Krell & Vitali, doi: 10.1002/spp2.1398.

Paleontologists Find Frog-Legged Beetle Fossil in Colorado

Aug 10, 2021 by News Staff

A new species of leaf beetle that lived nearly 49 million years ago (Eocene epoch) in what is now the United States has been named after Sir David Attenborough. Pulchritudo...

Kennedy et al. found that fetal gut colonization of healthy term infants does not occur before birth. Image credit: Darryl Leja, National Human Genome Research Institute, National Institutes of Health.

Fasting Can Protect from Intestinal Bacterial Infections, Study Suggests

Aug 10, 2021 by News Staff

Fasting before and during exposure to invasive food-borne bacteria protects mice from developing a full-blown gastrointestinal infection, in part through...

Red dwarfs flare actively and expel particles that can alter and evaporate the atmospheres of planets in their orbit. Image credit: Leibniz Institute for Astrophysics Potsdam / J. Fohlmeister.

Impact of Superflares on Planet Habitability around Small Stars May Be Weaker than Thought

Aug 9, 2021 by News Staff

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have studied large, long-duration flares in white light on red dwarfs, a class...

This infrared view of Ganymede was obtained by the JIRAM instrument aboard NASA’s Juno spacecraft during the July 20, 2021 flyby. Image credit: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM.

Juno Team Creates Infrared Map of Ganymede

Aug 9, 2021 by News Staff

Using data from the Jovian Infrared Auroral Mapper (JIRAM) instrument onboard NASA’s Juno spacecraft, researchers have produced a new infrared map of...

This composite image features a spectacular set of eight separate concentric rings around a black hole in the V404 Cygni binary system, captured using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory. The image also contains optical data from the Pan-STARRS telescope in Hawaii that show the stars in the field of view. Image credit: NASA / CXC / University of Wisconsin-Madison / Heinz et al. / Pan-STARRS.

Astronomers Spot Giant X-Ray Rings around Stellar-Mass Black Hole

Aug 9, 2021 by News Staff

Astronomers using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory have detected a set of eight X-ray rings around a low-mass black...

Life reconstruction of Thapunngaka shawi. Image credit: Richards et al., doi: 10.1080/02724634.2021.1946068.

Fossil of New Crested Pterosaur Discovered in Australia

Aug 9, 2021 by News Staff

Paleontologists in Australia say they have discovered the fossilized skeletal remains of a new species of flying reptile that lived between 113 and 100...

An Einstein ring formed by gravitationally lensed light from 2M1310-1714. Image credit: NASA / ESA / Hubble / T. Treu / Judy Schmidt, www.geckzilla.com.

Gravity of Massive Galaxy Pair Magnifies Light from Distant Quasar

Aug 9, 2021 by Enrico de Lazaro

Thanks to the presence of a gravitational lens, the NASA/ESA Hubble Space Telescope has captured five separate images of 2M1310-1714, a quasar located...

Spatial distribution of the minting remains in the Guanzhuang foundry’s excavation area: red dots: deposit with clay moulds; green dots: deposits with fragments of finished spade coins. Image credit: Z. Qu / H. Zhao.

World’s Earliest-Known Coin Mint and Spade Coin Discovered in China

Aug 6, 2021 by Enrico de Lazaro

Archaeologists have uncovered 2,640- to 2,550-year-old clay moulds for casting spade coins as well as fragments of finished spade coins at Guanzhuang in...

Red giants near and far sweep across the sky in this illustration. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, KBRwyle.

TESS Detects 158,505 Pulsating Red Giant Stars

Aug 6, 2021 by News Staff

NASA’s Transiting Exoplanet Survey Satellite hunts for exoplanets, but its sensitive measurements of stellar brightness make it ideal for studying stellar...

This artist’s impression shows the warm terrestrial planet L 98-59b. Image credit: M. Kornmesser / ESO.

Five Exoplanets Orbit Nearby Red Dwarf Star

Aug 6, 2021 by Natali Anderson

The L 98-59 planetary system contains two non-transiting planets and three transiting terrestrial planets, one of which is a warm rocky world with half...

Si.427, obverse. Image credit: İstanbul Arkeoloji Müzeleri / D.F. Mansfield, doi: 10.1007/s10699-021-09806-0.

3,700-Year-Old Babylonian Clay Tablet is Earliest Known Example of Applied Geometry

Aug 5, 2021 by News Staff

Known as Si.427, the ancient clay tablet was discovered and cataloged along with many other tablets by the 1894 French archaeological expedition at Sippar...

A black-crested titmouse (Baeolophus atricristatus) stealing fur from a sleeping fox. Image credit: YouTube channel Texas Backyard Wildlife / University of Illinois at Urbana-Champaign.

Some Birds Pluck Hair Directly from Live Mammals, Scientists Say

Aug 5, 2021 by News Staff

Researchers from the University of Illinois at Urbana-Champaign and the Universidade Federal do Rio Grande do Sul have observed several bird species exhibiting...

Jupiter is shown in visible light for context underneath an artistic impression of the Jovian upper atmosphere’s infrared glow. The brightness of this upper atmosphere layer corresponds to temperatures, from hot to cold, in this order: white, yellow, bright red and lastly, dark red. The aurorae are the hottest regions and the image shows how heat may be carried by winds away from the aurora and cause planet-wide heating. Image credit: J. O’Donoghue, JAXA / Hubble / NASA / ESA / A. Simon / J. Schmidt.

Jupiter’s Powerful Polar Aurorae are Responsible for Upper-Atmospheric Heating, Study Shows

Aug 5, 2021 by News Staff

The upper atmosphere of Jupiter is hotter than expected from the amount of sunlight that it receives: the average temperature should be about minus 73...

The ancestors of living birds had a brain shape much different from other dinosaurs (including other early birds); this suggests that brain differences may have affected survival during the end-Cretaceous mass extinction. Image credit: Christopher Torres / University of Texas at Austin.

Avian Brain Shape Left Other Dinosaurs Behind, Researchers Say

Aug 5, 2021 by News Staff

A team of paleontologists has digitally reconstructed the facial skeleton and brain endocast of Ichthyornis dispar, a toothed stem bird that lived in North...

© 2011-2026. Sci.News. All Rights Reserved. | Back to top