Asteroid dust in Chicxulub crater seals deal on dino extinction

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…

‘Major Component Malfunction’ Ends SLS Rocket Test Early. NASA Considers New Timeline

“NASA’s rocket charged with taking the agency back to the moon fired its four main engines Saturday afternoon, but the test in Mississippi was cut short after a malfunction caused an automatic abort,” reports Florida Today… “We did get an MCF on engine four,” a control room member said less than a minute into the test fire, using an initialism that…

The case of the missing dark matter: new suspect found in galactic mystery

A faraway galaxy with almost no dark matter has threatened to break our theory of galaxy formation. New evidence suggests the galaxy isn’t an anomaly—but a victim of theft. Source: https://phys.org/news/2020-11-case-dark-galactic-mystery.html…

‘How 30 Lines of Code Blew Up a 27-Ton Generator’

After the U.S. unveiled charges against six members of the Sandworm unit in Russia’s military intelligence agency, Wired re-visited “a secret experiment in 2007 proved that hackers could devastate power grid equipment beyond repair — with a file no bigger than a gif.” It’s an excerpt from the new book SANDWORM: A New Era of Cyberwar and the Hunt for the…

Researchers track slowly splitting ‘dent’ in Earth’s magnetic field

A small but evolving dent in Earth’s magnetic field can cause big headaches for satellites. Source: https://earthsky.org/earth/researchers-track-dent-in-earths-magnetic-field…

US Government Contractor Embedded Software in Apps To Track Phones

A small U.S. company with ties to the U.S. defense and intelligence communities has embedded its software in numerous mobile apps, allowing it to track the movements of hundreds of millions of mobile phones world-wide, The Wall Street Journal reported Friday, citing people familiar with the matter and documents it reviewed. From the report: Anomaly Six, a Virginia-based company founded by…

Are the Earth’s magnetic poles about to swap places?

Earth’s previous polar reversal happened 780,000 years ago. Are we facing another one soon? Hear from the authors of a new study, on a strange anomaly that might be a clue. Source: https://earthsky.org/earth/earths-magnetic-poles-reversal-soon-study…

Study reveals strange magnetic behaviour 8-11 million years ago

Research by the University of Liverpool has revealed that strange behaviour of the magnetic field in the South Atlantic region existed as far back as eight to 11 million years ago, suggesting that today’s South Atlantic Anomaly is a recurring feature and unlikely to represent an impending reversal of the Earth’s magnetic field. Source: https://phys.org/news/2020-07-reveals-strange-magnetic-behaviour-.html…