In the first all-sky survey by the eROSITA X-ray telescope onboard SRG, astronomers at the Max Planck Institute for Extraterrestrial Physics have identified a previously unknown supernova remnant, dubbed “Hoinga.” The finding was confirmed in archival radio data and marks the first discovery of a joint Australian-eROSITA partnership established to explore our Galaxy using multiple wavelengths, from low-frequency radio waves to…
Tag: explosion
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
Scientists image a bright meteoroid explosion in Jupiter’s atmosphere
From aboard the Juno spacecraft, a Southwest Research Institute-led instrument observing auroras serendipitously spotted a bright flash above Jupiter’s clouds last spring. The Ultraviolet Spectrograph (UVS) team studied the data and determined that they had captured a bolide, an extremely bright meteoroid explosion in the gas giant’s upper atmosphere. Source: https://phys.org/news/2021-02-scientists-image-bright-meteoroid-explosion.html…
Mount Etna erupts
Italy’s Mount Etna, one of the world’s most active volcanoes, has erupted twice in less than 48 hours, spewing a fountain of lava and ash into the sky. Source: https://earthsky.org/todays-image/mount-etna-erupts-feb2021…
Canadian Regulator Clears Launch of World’s First Bitcoin ETF
Canada’s main securities regulator has cleared the launch of the world’s first bitcoin exchange traded fund, an investment manager said on Friday, providing investors greater access to the cryptocurrency that has sparked an explosion in trading interest. Reuters reports: The Ontario Securities Commission has approved the launch of Purpose Bitcoin ETF, Toronto-based asset management company Purpose Investments Inc. said in a…
Flashes of the Crab Pulsar
It somehow survived an explosion that would surely have destroyed our Sun. Source: https://apod.nasa.gov/apod/astropix.html…
How the NSA’s Hubris Left America Vulnerable
A new book promises “the untold story of the cyberweapons market — the most secretive, invisible, government-backed market on earth — and a terrifying first look at a new kind of global warfare.” Its author — a New York Times cybersecurity reporter — shares the book’s story about David Evenden, a former National Security Agency analyst who later worked in Abu…
Satellite spots SpaceX’s Starship SN9 from space ahead of explosive test flight
New satellite imagery shows SpaceX’s Starship prototype poised on the launch pad ahead of its high-altitude test flight Tuesday (Feb. 2), which saw the prototype crash-land after successfully completing complex maneuvers in flight. Source: https://www.livescience.com/spacex-starship-sn9-satellite-images-before-explosion.html
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…
2nd SpaceX ‘Starship’ explodes during landing test
SpaceX tested one of its giant, silver “Starship” prototypes Tuesday (Feb. 2). And for the second time in two months, it exploded on landing. Source: https://www.livescience.com/starship-test-flight-explosion.html