A giant iceberg, about twice the size of Chicago, broke off from Antartica’s Brunt Ice Shelf in late February 2021. Source: https://earthsky.org/earth/giant-iceberg-breaks-off-antarctica-brunt-ice-shelf…
Tag: events
Gulf Stream at its weakest in over 1,000 years
A new study suggests that the Gulf Stream – an Atlantic Ocean current that plays a large role in shaping Earth’s weather patterns – is weaker now than at any point in the last 1,000 years. Source: https://earthsky.org/earth/gulf-stream-atlantic-weakest-in-over-1000-years…
Extinct atom reveals the long-kept secrets of the solar system
Using the extinct niobium-92 atom, ETH researchers have been able to date events in the early solar system with greater precision than before. The study concludes that supernova explosions must have taken place in the birth environment of our sun. Source: https://phys.org/news/2021-03-extinct-atom-reveals-long-kept-secrets.html…
What’s the coldest Earth has ever been?
Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…
Cosmic ray originated in cataclysmic event
Astronomers found a high energy neutrino – a cosmic ray – that apparently originated during a “tidal disruption event,” that is, when a supermassive black hole shredded a distant star. Source: https://earthsky.org/space/origin-cosmic-ray-when-black-hole-shreds-star…
How to see the full ‘Snow Moon’ and other celestial events this weekend
Here’s why February’s full moon is sometimes called the “Snow Moon” and how to watch it and other celestial events this weekend. Source: https://www.livescience.com/full-snow-moon-february-2021.html
Apollo rock samples capture key moments in the Moon’s early history, study find
Volcanic rock samples collected during NASA’s Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the Moon’s iron core, as well as the crystallization of the lunar magma ocean—the sea of molten rock thought to have covered the Moon for around 100 million years…
A Digital Firewall in Myanmar, Built With Guns and Wire Cutters
The Myanmar soldiers descended before dawn on Feb. 1, bearing rifles and wire cutters. At gunpoint, they ordered technicians at telecom operators to switch off the internet. For good measure, the soldiers snipped wires without knowing what they were severing, according to an eyewitness and a person briefed on the events. The New York Times: The data center raids in Yangon…
Delayed radio flares from a tidal disruption event
A team of researchers from the Hebrew University of Jerusalem (HUJI) led by Dr. Assaf Horesh have discovered the first evidence of radio flares emitted only long after a star is destroyed by a black hole. Published in the periodical Nature Astronomy, the discovery relied upon ultra-powerful radio telescopes to study these catastrophic cosmic events in distant galaxies called Tidal Disruption…
We’ve spotted a neutrino blasted out by a black hole shredding a star
For the first time, researchers have detected a high-energy neutrino emitted when a black hole ripped up a star, confirming these cataclysmic events act as particle accelerators Source: https://www.newscientist.com/article/2268724-weve-spotted-a-neutrino-blasted-out-by-a-black-hole-shredding-a-star/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…