Astra test-fires rocket ahead of 1st Florida launch (video)

Astra took another step forward in preparing for its first-ever launch of operational satellites. The California company performed a “static fire” test with its Rocket 3.3 vehicle at Florida’s Cape Canaveral Space Force Station on Saturday (Jan. 22), briefly igniting the launcher’s first-stage engines while keeping it anchored to the pad. The test is part … Read more

Saturn’s ‘Death Star’ moon could have a secret underground ocean

Scientists have found “compelling evidence” that Saturn’s “Death Star” moon is hiding an ocean just beneath its surface, furthering the search for possible life in our solar system. Researchers say that Mimas, Saturn’s smallest, innermost moon — whose resemblance to Star Wars’ infamous battle station inspired its nickname — revealed the first clue that it could be a … Read more

Health check newsletter: England lets covid-19 rip: What happens next?

As covid restrictions are relaxed in the UK, we look at how these new policies could play out Health 25 January 2022 By Clare Wilson A woman wearing a face mask as a preventive measure against the spread of coronavirus, London, England Dinendra Haria/SOPA Images/LightRocket via Getty Images Hello, and welcome to this week’s Health … Read more

Everyday objects can run artificial intelligence programs | Science

Imagine using any object around you—a frying pan, a glass paperweight—as the central processor in a neural network, a type of artificial intelligence that loosely mimics the brain to perform complex tasks. That’s the promise of new research that, in theory, could be used to recognize images or speech faster and more efficiently than computer … Read more

Perseverance rover does the ‘twist’ on Mars to shake loose stuck rocks

A quick twist and shake relieved NASA’s Perseverance rover on Mars of the last two pebbles clogging its sampling system.  The trouble began during the rover’s sixth Red Planet rock sample, on Dec. 29. Pebbles got stuck along the rover’s bit carousel, which passes rock samples into the spacecraft’s internal handling system for processing. After … Read more

Bitcoin hacking: Quantum computers are no threat to cryptocurrency

Bitcoin is theoretically vulnerable to being cracked by quantum computers, but calculations show they would need to be a million times larger than those that exist today Technology 25 January 2022 By Matthew Sparkes Bitcoin could one day be threatened by quantum computers – but not yet blackdovfx/Getty Images Quantum computers would need to become … Read more

How a disappearing ear bone turned bats into masters of echolocation | Science

Bats use sound to hunt a dizzying array of prey. Some zero in on flowers to sip nectar, whereas others find cattle and suck their blood. Many nab insects midflight. One species of bat senses small fish beneath the water and snatches them as osprey do. Now, scientists have discovered an anatomical quirk in the … Read more

Could a spacecraft ‘catch up’ to interstellar visitor ‘Oumuamua in just 26 years?

Could we send a spacecraft to the giant, cigar-shaped interstellar interloper ‘Oumuamua? Should we? In 2017, astronomers detected a space rock from another solar system whizzing through our cosmic neighborhood for the first time ever. The rock, called ‘Oumuamua, passed us by and sailed through our solar system leaving behind questions that remain to this … Read more

Microbes survive deep below the seafloor at temperatures up to 120°C

It was thought that microbes in sediments beneath the seafloor died above 80°C, but scientists have found some that can survive up to 120°C and possibly higher temperatures Life 25 January 2022 By Michael Le Page Bubbles coming out of a cave in the Pacific seabed near Japan 7maru/Getty Images Living microbes have been found … Read more