The hunt for the quantum collapse

The most famous cat in science is Schrödinger’s cat, the quantum mechanical mammal, which can exist in a superposition, a state that is alive as well as dead. The moment you look at it, one of both options is chosen. Leiden University physicists simulated an experiment to catch this mysterious moment of choice red handed. …

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…

Dark streaks on Mars may be caused by salts and melting ice

Researchers at the SETI Institute say that unusual dark streaks on sun-facing slopes on Mars, debated about for years, may be small landslides caused by a combination of salts and melting ice just below the surface. Source: https://earthsky.org/space/mars-dark-streaks-melting-ice-recurring-slope-lineae…

A record deadly week for US avalanches in early February

2021 has brought a deadly avalanche season. “We’re only halfway through the season and we’re 3/4 of the way to the number of fatalities we’d see in a typical year. The dangerous, record-breaking year keeps avalanche forecasters up at night,” one expert said. Source: https://earthsky.org/human-world/avalanches-2021-united-states-how-to-survive…

Galaxy-Size Gravitational-Wave Detector Hints At Exotic Physics

The fabric of spacetime may be frothing with gigantic gravitational waves, and the possibility has sent physicists into a tizzy. A potential signal seen in the light from dead stellar cores known as pulsars has driven a flurry of theoretical papers speculating about exotic explanations. Scientific American reports: The most mundane, yet still quite sensational, possibility is that researchers working with…

When will Betelgeuse explode?

The red supergiant star will explode in a supernova, close enough to shine brightly during the day but far enough away that Earth won’t be in danger. Source: https://earthsky.org/brightest-stars/betelgeuse-will-explode-someday…

A 25-Year-Old Bet Comes Due: Has Tech Destroyed Society?

“Twenty five years ago I made a bet in the pages of Wired. It was a bet whether the world would collapse by the year 2020.” So writes the 68-year-old founding executive editor of Wired magazine, Kevin Kelly. He’d made the bet with a “Luddite-loving doomsayer,” according to Wired — author Kirkpatrick Sale. “Sale while a student in the 1950s co-wrote…

Famous alien-hunting telescope collapsed in December. Now, investigators might know why.

An ongoing investigation of the December collapse of the iconic radio telescope at Arecibo Observatory in Puerto Rico offers early evidence a manufacturing issue may have contributed to the failure. Source: https://www.livescience.com/arecibo-telescope-debris-clearing-possible-cause-update.html