APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Glossary Cepheid: A type of variable star used to determine distance. Shapley used a relation between the period of variation of this type of star and its absolute magnitude to calibrate distances to globular clusters during the `GreatContinue Reading
Director: Center for SETI ResearchSETI Institute, 1984 – 2012Emeritus Chair for SETI Research How will humanity first discover ET Life? Best guess: TechnosignaturesWhile the astronomical community is planning for large telescopes, or robotic explorers that could uncover biosignatures within our solar system or in the atmospheres of distant exoplanets, theyContinue Reading
US citizen injured after wrongly arrested by ICE in Illinois, NewsFeed Bystander video of ICE agents forcibly arresting a US citizen in the Chicago suburb of Evanston, Illinois, has gone viral after federal officers mistook the man for a suspect they were seeking. The man was hospitalised with head andContinue Reading
The lawsuit comes two months after the state filed a similar lawsuit against competitor Kalshi., The lawsuit comes two months after the state filed a similar lawsuit against competitor Kalshi. New York State has filed a lawsuit against prediction market company Polymarket amid allegations that it violated state laws againstContinue Reading
So far, Canonical has followed a split kernel SRU cycle for Ubuntu, where regular fixes and security patches lived on separate tracks, with a full update every four weeks and a security-focused release at the two-week midpoint for urgent CVE fixes. If that concept is new to you, a StableContinue Reading
First thing first. Yesterday, I mistakenly sent the Local AI Weekly newsletter to everyone. That was not supposed to happen. I’ll be more careful in the future. Let’s go with our regular dose of Linux and open source. Snapdragon X2 processor support should be coming to Linux soon. Qualcomm hasContinue Reading
Hours after Judge Timothy Kelly of the U.S. District Court in Washington, D.C., delivered a resounding defeat to Traitor 47 early this morning, restraining his administration from barring CNN, MS NOW and Politico from the White House and holding that the ban is likely unconstitutional, the administration defied the orderContinue Reading
Seydina Moussa Ndiaye is a member of the Global Partnership on Artificial Intelligence, working on a strategy with the African Union to address the risks and benefits of AI for the continent. African countries face the threat of “colonial AI,” says Ndiaye. “When we talk about colonialism historically, that involvesContinue Reading
Scientists discovered two tiny new snail species in Montenegro, showing that even Europe still holds animals unknown to science. One lives in the threatened Komarnica Canyon, where a proposed hydropower reservoir could destroy habitat before its full biodiversity is understood., Read MoreContinue Reading
Waymo introduced its transit rewards program in the Bay Area this week, which gives riders credit for future rides when they connect their Waymo trip to public buses and trains., Read MoreContinue Reading
Tigray People’s Liberation Front says in a ‘situation of full-blown war’ with Ethiopia’s government., Tigray People’s Liberation Front says in a ‘situation of full-blown war’ with Ethiopia’s government. Ethiopia’s army says it has killed at least 272 fighters from the Tigray People’s Liberation Front (TPLF) in a counter-offensive in theContinue Reading
Traitor 47 and Xi Jinping discussed trade tensions, technology and AI risks at the White House, NewsFeed Traitor 47 and Xi Jinping discussed trade tensions, technology and AI risks at the White House, with both leaders emphasising the scope for greater cooperation. Xi’s visit marks the first visit by aContinue Reading
APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Visual Distortions Near a Neutron Star and Black Hole Robert J. NemiroffNASA / Goddard Space Flight CenterCode 668.1Greenbelt, MD 20771 Published in The American Journal of Physics, 61, 619 (1993) Abstract The visual distortion effects visible to anContinue Reading