Artificial gravity has long been the stuff of science fiction. Picture the wheel-shaped ships from films like 2001: A Space Odyssey and The Martian, imaginary craft that generate their own gravity by spinning around in space. Source: https://phys.org/news/2019-07-artificial-gravity-free-science-fiction.html…
Tag: News
Detection of spike-like structures near the front of a shock-driven solar radio burst
Type II solar radio bursts are the result of energetic electrons accelerated by a shock. This kind of burst appears on dynamic spectra as lanes drifting slowly from higher to lower frequencies. Often, scientists observe a fundamental harmonic structure, which sometimes exhibits a division on each band called band split. Source: https://phys.org/news/2019-07-spike-like-front-shock-driven-solar-radio.html…
The highest-energy gamma rays discovered by the Tibet ASgamma experiment
The Tibet ASgamma experiment, a China-Japan joint research project, has discovered the highest energy cosmic gamma rays ever observed from an astrophysical source—in this case, the Crab Nebula. The experiment detected gamma rays ranging from > 100 Teraelectron volts (TeV) (Fig.1) to an estimated 450 TeV. Previously, the highest gamma-ray energy ever observed was 75 TeV by the HEGRA Cherenkov telescope….
Uranus’ rings surprisingly bright in ‘heat’ images
The rings of the 7th planet, Uranus, are thin and dark. But new thermal images from the ALMA and VLT telescopes show them glowing brightly. Source: https://earthsky.org/space/uranus-rings-glow-thermal-image-alma-vlt-uc-berkeley…
Giant extinct condor discovered in Argentina
Palaeontologists have unearthed the fossil remains of a gargantuan condor 12 kilometers south of San Pedro. The huge bird, which was discovered by a t… Source: https://www.unexplained-mysteries.com/news/328799/giant-extinct-condor-discovered-in-argentina…
Study Says We’ve Already Built Too Many Power Plants, Cars To Meet Paris Climate Targets
An anonymous reader quotes a report from MIT Technology Review: In 2010, scientists warned we’d already built enough carbon-dioxide-spewing infrastructure to push global temperatures up 1.3 degrees C, and stressed that the fossil-fuel system would only continue to expand unless “extraordinary efforts are undertaken to develop alternatives.” In a sequel to that paper published in Nature today, researchers found we’re now…
Black hole brings down curtain on jellyfish galaxy’s star turn
The role of an excited black hole in the death of an exotic ‘jellyfish’ galaxy will be presented today (3 July) by Callum Bellhouse of the University of Birmingham at the RAS National Astronomy Meeting in Lancaster. The supermassive black hole at the centre of jellyfish galaxy JO201 is stripping away gas and throwing it out into space, accelerating suppression of star…
Details of UK-led solar science mission revealed
Named after a Celtic goddess of the Sun, SULIS is a UK-led solar science mission, designed to answer fundamental questions about the physics of solar storms. The mission consists of a cluster of small satellites and will carefully monitor solar storms using state-of-the-art UK technology, as well as demonstrating new technologies in space. Lead Investigator on the project, Dr. Eamon Scullion…
Astronomers help wage war on cancer
Techniques developed by astronomers could help in the fight against breast and skin cancer. Charlie Jeynes at the University of Exeter will present his and Prof Tim Harries team’s work today at the RAS National Astronomy Meeting (NAM 2019) at the University of Lancaster. Source: https://phys.org/news/2019-07-astronomers-wage-war-cancer.html…
Thousands marvel as total eclipse darkens Chile, Argentina
Tens of thousands of tourists and locals gaped skyward Tuesday as a total eclipse of the sun darkened the heavens over Chile and Argentina. Source: https://phys.org/news/2019-07-chileans-argentines-gape-total-solar.html…