On Sunday, February 28, 3 astronauts will perform the first in a pair of International Space Station spacewalks to ready the station for solar array upgrades. How to watch live. Source: https://earthsky.org/space/watch-iss-spacewalk-feb-mar-2021…
Tag: Thermal
Deepest land-dwelling microbes found at bottom of 5km hole in China
Microbes at the bottom of the third deepest hole in the world may be surviving life at 137°C, which would extend life’s known thermal tolerances Source: https://www.newscientist.com/article/2268428-deepest-land-dwelling-microbes-found-at-bottom-of-5km-hole-in-china/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Signals in optical band can be used as probe to detect atmosphere escape of hot Jupiters
YAN Dongdong, GUO Jianheng and Xing Lei from Yunnan Observatories of the Chinese Academy of Sciences, collaborating with Huang Chenliang from University of Arizona, deduced that there is an expanding and escaping thermal neutral hydrogen atmosphere around hot Jupiter WASP-121b by simulating the optical transmission spectrum (Hα) of this exoplanet. The study was published in The Astrophysical Journal Letters. Source: https://phys.org/news/2021-02-optical-band-probe-atmosphere-hot.html…
Researchers gather numerical evidence of quantum chaos in the Sachdev-Ye-Kitaev model
Over the past few years, many physicists worldwide have conducted research investigating chaos in quantum systems composed of strongly interacting particles, also known as many-body chaos. The study of many-body chaos has broadened the current understanding of quantum thermalization (i.e., the process through which quantum particles reach thermal equilibrium by interacting with one another) and revealed surprising connections between microscopic physics…
There’s a Tantalizing Sign of a Habitable-Zone Planet in Alpha Centauri
An international team of astronomers has found signs that a habitable planet may be lurking in Alpha Centauri, a binary star system a mere 4.37 light-years away. It could be one of the closest habitable planet prospects to date, although it’s probably not much like Earth if it exists. From a report: The new findings: The Alpha Centauri system’s potential to…
Mars atmosphere shedding charged particles onto Phobos?
New research suggests that particles escaping from Mars’ atmosphere have been accumulating on the surface of the planet’s largest moon Phobos for billions of years. They could provide important new details about the history of both worlds. Source: https://earthsky.org/space/mars-atmosphere-history-phobos-soil…
How to see Sirius B
Sirius is a binary star, with a small white dwarf called the Pup orbiting the large primary star. It’s not easy to observe, but it is possible. Here’s how. Source: https://earthsky.org/brightest-stars/how-to-observe-sirius-b…
Electric Cars Would Save America Huge Amounts of Energy
An anonymous reader shares an opinion piece from Bloomberg, written by Liam Denning and Elaine He: Electrifying U.S. vehicles wipes out the equivalent of our entire current power demand. The U.S. consumes a lot of energy; last year, about 100 quadrillion BTUs (equivalent to 17 billion barrels of oil; which, we’ll admit, is only marginally less abstract). But only about a…
The Highest Resolution Photos Ever Taken of Snowflakes
Photographer and scientist Nathan Myhrvold has developed a camera that captures snowflakes at a microscopic level never seen before. Smithsonian Magazine reports: Myhrvold, who holds a PhD in theoretical mathematics and physics from Princeton University and served as the Chief Technology Officer at Microsoft for 14 years, leaned on his background as a scientist to create the camera. He also tapped…
Apple’s iPhone 13 Could Ditch the Lightning Port, Feature Next-Gen Vapor Chamber Cooling and In-Screen Fingerprint Sensor
According to analyst Ming-Chi Kuo, Apple’s upcoming iPhone 13 could feature vapor chamber cooling, as well as an in-screen fingerprint sensor. It may also completely ditch the Lightning port in favor of wireless charging. Apple Insider reports: Kuo believes Apple is highly likely to incorporate vapor chamber tech into an upcoming iPhone model, though it is not clear if the system…