Gas around black holes and interstellar medium distribution are key factors in understanding the growth of supermassive black holes and the evolution of their host galaxies. However, as a crucial parameter, gas density is hard to determine reliably, because the general method is not applicable to all quasars. Source: https://phys.org/news/2021-03-sharp-broad-absorption-line-variations.html…
Tag: medium
Closest Mars-Pleiades conjunction until 2038
This year – on March 3, 2021 – the red planet Mars and the Pleiades star cluster – also known as the Seven Sisters – stage their closest conjunction on the sky’s dome until February 4, 2038. Source: https://earthsky.org/tonight/closest-mars-pleiades-conjunction-until-2038…
Stanford Researchers Identify Four Causes For ‘Zoom Fatigue’ and Their Simple Fixes
In the first peer-reviewed article that systematically deconstructs Zoom fatigue from a psychological perspective, published in the journal Technology, Mind and Behavior on Feb. 23, Professor Jeremy Bailenson, founding director of the Stanford Virtual Human Interaction Lab (VHIL), has taken the medium apart and assessed Zoom on its individual technical aspects. He has identified four consequences of prolonged video chats that…
Medium-size dinos are missing from the fossil record. Here’s why.
Here’s why there aren’t more medium-size carnivorous dinosaurs. Source: https://www.livescience.com/missing-medium-size-dinosaurs.html
New storage medium uses physical properties of antiferromagnetic material
Using nanoscale quantum sensors, an international research team has succeeded in exploring certain previously uncharted physical properties of an antiferromagnetic material. Based on their results, the researchers developed a concept for a new storage medium published in the journal Nature Physics. The project was coordinated by researchers from the Department of Physics and the Swiss Nanoscience Institute at the University of…
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…
See Sirius, the brightest star in the night sky
Find out how to spot Sirius, the brightest star as seen from Earth. Learn the mythology behind this dazzling light and how it earned the nickname of the Dog Star. Source: https://earthsky.org/brightest-stars/sirius-the-brightest-star…
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…
Is Misinformation on Nextdoor Impacting Local Politics?
Was Nextdoor’s impact on the world exemplified by a crucial funding referendum for the Christina School District of Newark, Delaware? Medium’s tech site OneZero reports: As the 2019 referendum approached, I saw Nextdoor posts claiming that the district was squandering money, that its administrators were corrupt, and that it already spent more money per student than certain other districts with higher…
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…