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…
Tag: expansion
Facebook, WhatsApp and Twitter Face New Rules in India
India is establishing new rules to govern internet firms like Facebook, WhatsApp and Twitter, [Editor’s note: the link may be paywalled; alternative source] a fresh challenge for the American giants in a huge market that is key to their global expansion. From a report: The new guidelines, unveiled Thursday, say that in order to counter the rise of problematic content online…
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…
YouTube TV To Launch Option for 4K and Unlimited Streams
YouTube outlined a string of new features coming to the internet’s biggest video platform, including enhancements to YouTube TV and the rollout next month in the U.S. of YouTube Shorts — its tool for creating short-form vertical videos a la TikTok. From a report: YouTube TV, Google’s pay-TV service, will introduce an add-on option that will let subscribers watch shows in…
AMD Is Currently Hiring More Linux Engineers
According to Phoronix, AMD currently has several interesting job openings on the Linux front. From the report: While AMD has been delivering reliable Linux support with their recent launches, there is room for improvement in areas like more timely compiler support for new processors, better alignment of their new hardware enablement for getting the code not only upstreamed but into distributions…
JADES will go deeper than the Hubble Deep Fields
Astronomers announced this month that a new deep-field survey called JADES will be carried out with the James Webb Space Telescope, Hubble’s much-anticipated successor. The Webb is due to launch later this year. Source: https://earthsky.org/space/jades-deep-field-surveys-epoch-of-1st-galaxies…
Our world is losing ice at a record rate
The rate at which ice is disappearing across the planet has been speeding up, with 65% since the 1990s, a survey of global ice loss using European Space Agency satellite data reveals. Source: https://earthsky.org/earth/esa-satellites-show-record-rate-ice-loss…
NASA’s Juno mission expands into the future
NASA has authorized a mission extension for its Juno spacecraft exploring Jupiter. The agency’s most distant planetary orbiter will now continue its investigation of the solar system’s largest planet through September 2025, or until the spacecraft’s end of life. This expansion tasks Juno with becoming an explorer of the full Jovian system—Jupiter and its rings and moons—with multiple rendezvous planned for…
US To Require Negative COVID-19 Tests For International Air Passengers
According to Reuters, the CDC is expected to sign an order on Tuesday requiring nearly all international air travelers to test negative for COVID-19 within 72 hours of departure. Those under 2 and passengers connecting through the UK are exempt. From the report: The new rules are to take effect two weeks from the day they are signed by CDC Director…
A new look at the universe’s oldest light
New work agrees with older research suggesting the oldest light in the universe – from the most distant galaxy yet known – started its journey toward us 13.77 billion years ago. Source: https://earthsky.org/space/a-new-look-at-the-universes-oldest-light…