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Stars can experience midlife crisis: Study by Indian, Nepalese astrophysicists explain why
The study, published in the peer-reviewed Monthly Notices of the Royal Astronomical Society: Letters on Wednesday, provides a new theoretical explanation for the stellar mid-life crisis of stars that are approximately as old as the Sun in our solar system.
The Earth's Interior Is Sucking Up Huge Amounts of Carbon, Scientists Say
We're not out of the woods yet, however — though the research could help us make more accurate projections about a drastically changing climate, and even perhaps provide clues about how to artificially remove carbon from the atmosphere and lock it beneath ...
When less is more: Robot swarms adapt better to changes with constrained communication
To effectively perform collective monitoring of dynamic environments, a robot swarm needs to adapt to changes by processing the latest information and discarding outdated beliefs. We show that in a swarm composed of robots relying on local sensing, ...
Horny sponges that lived nearly 1 billion years ago may be the earliest animals on Earth
Paleontologists already consider sponges to be good candidates for the earliest form of animal life. If this analysis is correct and the Canadian fossils truly represent ancient sponges, they would predate the oldest known sponge fossils by about 350 million ...
Magnetic fields implicated in the mysterious midlife crisis of stars
Date: July 28, 2021; Source: Royal Astronomical Society; Summary: Middle-aged stars can experience their own kind of midlife crisis, experiencing dramatic breaks in their activity and rotation rates at about the same age as our Sun, according to new ...
Astronomers detect light from behind a black hole for the first time
While studying a series of X-ray flares emitted by the black hole, Stanford University astrophysicist Dan Wilkins noticed a unique X-ray pattern lagging just behind the initial burst. These delayed flares, described ...
A new approach to preventing human-induced earthquakes
Applied in the field, a new model reduced quakes from oil and gas processes; could help manage seismic events from carbon sequestration. Jennifer Chu | MIT News ...
Water as a metal
Water only develops metallic properties under extreme pressure, such as exists deep inside of large planets. Now, an international collaboration has used a completely different approach to produce metallic water and documented the phase transition at BESSY ...
How do 'Tatooine' planets survive with 2 suns?
It's hard for an exoplanet to establish itself in a neighborhood built around not one but two stars. But astronomers have spotted plenty of such alien worlds, sometimes nicknamed "Tatooines" after the "Star Wars" planet where Luke Skywalker watches a double ...
Covid: No quarantine for fully jabbed US and EU travellers to England
The travel industry had been pushing for the rule change so tourists can more easily come to England.
Blood inquiry: Former health minister defends blood products advice on Aids
Infected blood scandal survivors have accused ministers of misleading the public in 1983.
Now in 3D: Deep learning techniques help visualize X-ray data in three dimensions
Date: July 27, 2021; Source: DOE/Argonne National Laboratory; Summary: A team of scientists has leveraged artificial intelligence to train computers to keep up with the massive amounts of X-ray data taken at the Advanced Photon Source. Share:.
Scientists capture most-detailed radio image of Andromeda galaxy to date
It was published online in Astronomy and Astrophysics. "This image will allow us to study the structure of Andromeda and its content in more detail than has ever been possible," said Fatigoni, a PhD ...
A single-molecule laser nanospectroscopy technique with micro-electron volt energy resolution
When molecules are excited, they can give rise to a variety of energy conversion phenomena, such as light emission and photoelectric or photochemical conversion. To unlock new energy conversion functions in organic materials, researchers should be able ...
A reversible male contraceptive, targeted to the testes with magnets
Date: July 28, 2021; Source: American Chemical Society; Summary: Women have several choices for long-lasting, reversible contraceptives, but most options for men are either single-use, such as condoms, or difficult to reverse, like vasectomies. Now, in a ...
Are middle-aged people more unhealthy than ever?
Why could the current cohort of 40-somethings be proving less healthy than previous generations?
Water transformed into shiny, golden metal
If you can't turn water into gold like a good alchemist would, the next best thing might be to transform water itself into a shiny, metallic material. Researchers have achieved that feat by forming a thin layer of water around electron-sharing alkali metals.
Andy Chaikin on Apollo 15 and the lessons of Apollo
Download MP3. On This Episode. Speaker andrew chaikin. Andrew Chaikin. Author, Speaker, Space Historian. Betts bruce headshot 9980 print. Bruce Betts. Chief Scientist / LightSail Program Manager for The Planetary Society. Kaplan mat headshot 0114a ...
These Could Be the Oldest Animal Fossils Ever Found, or Just Squiggles
Dr. Turner suggests the meshlike structures closely resemble the fiber networks of modern keratose sponges, also known as horny sponges, found around the world today. But she concedes that what she saw under a microscope ...
Managing earthquakes triggered by oil production: Scientists demonstrate safer wastewater disposal method
A team of scientists has developed an approach to disposing wastewater that reduces the danger of triggering an earthquake. Oil production generates large volumes of wastewater, which is often injected into the ground as a means of disposal to avoid ...
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