Hoinga: Debris of stellar explosion found in unexpected location

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…

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…

Cosmic ray originated in cataclysmic event

Astronomers found a high energy neutrino – a cosmic ray – that apparently originated during a “tidal disruption event,” that is, when a supermassive black hole shredded a distant star. Source: https://earthsky.org/space/origin-cosmic-ray-when-black-hole-shreds-star…

Starlink Will Hit 300Mbps and Expand To ‘Most of Earth’ This Year

Starlink broadband speeds will double to 300Mbps “later this year,” SpaceX CEO Elon Musk wrote on Twitter this week. SpaceX has been telling users to expect speeds of 50Mbps to 150Mbps since the beta began a few months ago. From a report: Musk also wrote that “latency will drop to ~20ms later this year.” This is no surprise, as SpaceX promised…

Best observing targets for binoculars

What are the best solar system and deep-sky objects to view to get the most out of your binoculars? From moon-encircled worlds to starry knots in the Milky Way, our list makes the sky’s wonders easy to find. Source: https://earthsky.org/astronomy-essentials/best-targets-for-binoculars-moon-planets-nebula-clusters…

Swarm of black holes discovered

For the first time, astronomers have detected the presence of a throng of black holes crowding near the center of an ancient globular cluster. Source: https://earthsky.org/space/group-black-holes-found-globular-cluster-ngc-6397…

Images of shadows cast by jet contrails

Jet contrail shadows may appear to be cast by a low-altitude bright light shining upwards. In fact, this shadow is normally cast on clouds below the jet and its contrail. Source: https://earthsky.org/todays-image/jet-contrail-casts-a-shadow…

Could an Ethically-Correct AI Shut Down Gun Violence?

The Next Web writes:
A trio of computer scientists from the Rensselaer Polytechnic Institute in New York recently published research detailing a potential AI intervention for murder: an ethical lockout. The big idea here is to stop mass shootings and other ethically incorrect uses for firearms through the development of an AI that can recognize intent, judge whether it’s ethical use, and…

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…

Roku Plans To Produce Original Shows and Feature Films

Not content anymore with just streaming Hollywood’s old shows and movies, Roku is looking to produce originals: The company published a job listing for a lead production attorney, which spells out plans to build out an “expanding slate of original content.” From a report: This renewed push into originals comes just weeks after Roku acquired Quibi’s content library, for which the…