Scientists examined rock cores taken from the Chicxulub crater in Mexico, site of the asteroid impact that triggered dinosaur extinction, and found iridium, a telltale sign of asteroids. Source: https://earthsky.org/earth/asteroid-dust-iridium-chicxulub-crater-dinosaur-extinction…
Tag: spike
Wikipedia has seen a spike in people editing pages during the pandemic
As Italy’s coronavirus lockdown started, Wikipedia saw an 80 per cent increase in editors from that country – and edits to the English version are up 20 per cent during the pandemic Source: https://www.newscientist.com/article/2269414-wikipedia-has-seen-a-spike-in-people-editing-pages-during-the-pandemic/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Did ‘Tens of Thousands’ of Bot Accounts Hype GameStop’s Stock and Dogecoin?
Reuters reports: Bots on major social media platforms have been hyping up GameStop Corp and other “meme” stocks, according to an analysis by Massachusetts-based cyber security company PiiQ Media, suggesting organized economic or foreign actors may have played a role in the Reddit-driven trading frenzy… it is unclear how influential they were in the overall saga… PiiQ said it identified very…
Why COVID-19 spreads more easily than SARS
The study researchers focused on the spike protein, the structure that allows coronaviruses to bind to and enter human cells. Source: https://www.livescience.com/covid-19-more-transmissible-sars-coronviruses.html
Could Earth’s Reversing Magnetic Poles Accelerate Climate Change?
A team of researchers from Sydney’s University of New South Wales and the South Australian Museum have investigated how the reversal of Earth’s magnetic pole about 42,000 years could have changed earth’s atmosphere. CNN reports: “Using the ancient trees we could measure, and date, the spike in atmospheric radiocarbon levels caused by the collapse of Earth’s magnetic field,” Chris Turney, a…
Upheaval and extinctions linked to magnetic reversal 42,000 years ago
42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…
Welcoming Morehouse College to the Coursera partner community
Morehouse College launches sports activism course taught by NBA All-Star Chris Webber By Betty Vandenbosch, Chief Content Officer at Coursera I’m excited to announce our partnership with Morehouse College as we continue to expand our engagement with leading institutions, including historically Black colleges and universities (HBCUs) in the U.S. Morehouse College, a leading producer of […]
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Losses To Romance Scams Reached a Record $304 Million in 2020
The current COVID-19 pandemic and the subsequent stay-at-home and social distancing directives might have played a major role in romance scams losses reaching record levels in 2020, the US Federal Trade Commission said in a report last week. From a report: Total losses were estimated at a record $304 million, up about 50% from 2019, with the average loss last year…
How the Ozone Layer Was ‘Rescued’ From a Spike in CFC
Thelasko shared this report from the BBC: A steady decline in the levels of ozone-harming CFC chemicals in the atmosphere has resumed, scientists say. This follows a recent, dangerous pause in that downward trajectory, which could have slowed the healing of Earth’s protective ozone layer. Atmospheric measurements published in 2018 pointed to illegal CFC production that was occurring in Eastern China….
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…