The source of potentially hazardous solar particles, released from the Sun at high speed during storms in its outer atmosphere, has been located for the first time by researchers at UCL and George Mason University, Virginia, U.S. Source: https://phys.org/news/2021-03-source-hazardous-high-energy-particles-sun.html…
Tag: hazardous
Boston Dynamics Is Selling its 70-Pound Robot Dog To Police Departments
The New York Times reports on what the city’s police department calls Digidog, “a 70-pound robotic dog with a loping gait, cameras and lights affixed to its frame, and a two-way communication system that allows the officer maneuvering it remotely to see and hear what is happening.”
Police said the robot can see in the dark and assess how safe it is…
Asteroid the size of the Golden Gate Bridge will whiz past Earth in March
An asteroid the size of the Golden Gate Bridge will get close enough to Earth to be classified as “potentially hazardous.” What’s the risk? Source: https://www.livescience.com/potentially-hazardous-asteroid-whizzes-near-earth-2001-fo32.html
Scientists Develop Transparent Wood That Is Stronger, Lighter Than Glass
Researchers at the University of Maryland have turned ordinary sheets of wood into transparent material that is nearly as clear as glass, but stronger and with better insulating properties. It could become an energy efficient building material in the future. CBC.ca reports: Wood is made of two basic ingredients: cellulose, which are tiny fibres, and lignin, which bonds those fibres together…
Another terrible year for wildfires and smoke in the US in 2020
Wildfires burned more than 10 million acres in the United States during the 2020 season. It was the worst season on record. Source: https://earthsky.org/earth/us-2020-wildfire-season-record-bad…
Are We Slowing Global Warming?
This week New York Magazine featured a new article by journalist David Wallace-Wells about the state of the fight against global warming. He warns that “Already, the planet is warmer, at just 1.2 degrees, than it has ever been…” But there’s also some good news:
Just a half-decade ago, it was widely believed that a “business as usual” emissions path would bring…
China’s huge FAST telescope to open to international observers
FAST’s 500-meter (1,640-foot) dish makes it the world’s largest single-dish radio observatory. It’s expected to open to international observers in 2021. Source: https://earthsky.org/space/worlds-largest-radio-telescope-china-fast…
Biggest asteroid to pass near Earth in 2021 is also one of the fastest
Asteroid 2001 FO32 will be sweeping past Earth at such a fast pace that, when it’s closest, observers using telescopes might be able to detect its motion – its drift in front of the stars – in real time. Source: https://earthsky.org/astronomy-essentials/asteroid-2001-fo32-big-fast-pass-near-earth-2021…
Will SpaceX’s Starlink satellites ruin stargazing?
SpaceX’s satellites will populate the night sky, affecting how we observe the stars. And this is just the beginning of private satellite mega-constellations. Source: https://earthsky.org/human-world/will-spacex-starlink-satellites-ruin-stargazing…
Astronomers measure a change in orbit for infamous asteroid Apophis
Astronomers in Hawaii have detected the Yarkovsky effect – a minuscule push imparted by sunlight – for asteroid Apophis. The effect is particularly important for Apophis, because it relates to the possibility of an Earth impact in 2068. Source: https://earthsky.org/space/asteroid-99942-apophis-encounters-2029-2036-2068…