We’ve known for some time that Venus has vast lava plains, fields of small lava domes, and large shield volcanoes. But does it still have active volcanoes? A new study involving lava flows on Venus suggests that, yes, it does. Source: https://earthsky.org/space/evidence-active-volcanoes-venus-olivine…
Tag: Science Advances
Scientists find evidence that Venus has active volcanoes
New research led by Universities Space Research Association (USRA) and published today in Science Advances shows that lava flows on Venus may be only a few years old, suggesting that Venus could be volcanically active today—making it the only planet in our solar system, other than Earth, with recent eruptions. Source: https://phys.org/news/2020-01-scientists-evidence-venus-volcanoes.html…
Two Top Scientists Warn That The Amazon, and Earth, Have Reached a Tipping Point
An anonymous reader quotes the Washington Post: “The precious Amazon is teetering on the edge of functional destruction and, with it, so are we,” Thomas Lovejoy of George Mason University and Carlos Nobre of the University of Sao Paulo in Brazil, both of whom have studied the world’s largest rainforest for decades, wrote in an editorial in the journal Science Advances….
Early Humans Domesticated Themselves, New Genetic Evidence Suggests
An anonymous reader quotes a report from Science Magazine: A new study — citing genetic evidence from a disorder that in some ways mirrors elements of domestication — suggests modern humans domesticated themselves after they split from their extinct relatives, Neanderthals and Denisovans, approximately 600,000 years ago. Domestication encompasses a whole suite of genetic changes that arise as a species is…
Ice fossils found in meteorite
A team of researchers from Japan, China and the U.K. has found evidence of ice fossils on the surface of a meteorite. In their paper published in the journal Science Advances, the group describes their close-up study of the Acfer 094 meteorite and what they found. Source: https://phys.org/news/2019-11-ice-fossils-meteorite.html…
Extending electron paramagnetic resonance (EPR) spectroscopy to nanoliter volume protein single crystals
Biochemists can use electron paramagnetic resonance (EPR) on protein single crystals to determine the ultimate electronic structure of paramagnetic protein intermediates and investigate the relative magnetic tensor to a molecular structure. The method is, however, withheld by typical protein crystal dimensions (0.05 to 0.3 mm) that do not provide sufficient signal intensity during protein crystallography. In a new study on Science…
A new theory to explain how the dunes on Titan formed
A trio of researchers with the University of Hawaii has developed a new theory to explain how the dunes on Saturn’s largest moon, Titan, may have formed. In their paper published in the journal Science Advances, Matthew Abplanalp, Robert Frigge and Ralf Kaiser suggest that rather than forming from rainfall, the dunes have formed on the moon’s surface. Source: https://phys.org/news/2019-10-theory-dunes-titan.html…
Some Corals Grow After ‘Fatal’ Warming
An anonymous reader quotes a report from Phys.Org: For the first time ever, scientists have found corals that were thought to have been killed by heat stress have recovered, a glimmer of hope for the world’s climate change-threatened reefs. The chance discovery, made by Diego K. Kersting from the Freie University of Berlin and the University of Barcelona during diving expeditions…
Demonstrating slow light in rubidium vapor using single photons from a trapped ion
Quantum networks can be practically implemented to interface with different quantum systems. In order to photonically link hybrid systems with combined unique properties of each constituent system, scientists must integrate sources with the same photon emission wavelength. For instance, trapped ions and neutral atoms can both have compelling properties as nodes and memories within quantum networks but without photonic linking due…
Team uses deep learning to monitor the sun’s ultraviolet emission
A NASA Frontier Development Lab (FDL) team has shown that by using deep learning, it is possible to virtually monitor the Sun’s extreme ultraviolet (EUV) irradiance, which is a key driver of space weather. The Sun is vital for survival, but solar flares, which typically occur a few times a year, have the potential to cause severe disruptions in space and…