darthgently Posted January 28 Share Posted January 28 These are such great math animations but this one is particularly good Quote Link to comment Share on other sites More sharing options...
darthgently Posted January 28 Share Posted January 28 Boom Aero did it! About an hour and a minute into the second vid Quote Link to comment Share on other sites More sharing options...
darthgently Posted January 28 Share Posted January 28 (edited) Out climbed, with gear down, a T-38 with gear up! Near vertical if I heard right. The T-38 is a trainer and has a climb rate of 33,600 feet/minute. Definitely on the low end compared to most active fighter jets but no slouch at all compared to civil aircraft Edited January 28 by darthgently Quote Link to comment Share on other sites More sharing options...
AckSed Posted January 30 Share Posted January 30 Io continues to show off its volcanic activity, with a large eruption near its south pole that was picked up by Juno's JIRAM infrared imager: https://www.universetoday.com/170655/juno-sees-a-massive-hotspot-of-volcanic-activity-on-io/ Quote Link to comment Share on other sites More sharing options...
AckSed Posted January 31 Share Posted January 31 Nuclear-thermal fans, we're taking a step closer: https://www.ga.com/ga-successfully-tests-nuclear-thermal-propulsion-reactor-fuel-at-nasa-marshall-space-flight-center tl;dr Successfully tested hydrogen flowing over fuel pellets at operational temperatures of 2600K (2327 deg. C) at NASA's CFEET facility, with non-hydrogen propellant tested at 3000K. Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted February 1 Author Share Posted February 1 It's not often you see the word "ghost" in a respected science journal - especially when by 'ghost' they are literally talking about some sort of spectral apparition. So when I saw the word on the Science AAS site, I was intrigued. Sadly, pay walled for me. Thankfully, they're not the only ones reporting. Read on about seismology, railroads and ghosts: https://mashable.com/article/earthquake-railroad-ghost-story Quote Link to comment Share on other sites More sharing options...
darthgently Posted February 1 Share Posted February 1 10 minutes ago, JoeSchmuckatelli said: It's not often you see the word "ghost" in a respected science journal - especially when by 'ghost' they are literally talking about some sort of spectral apparition. So when I saw the word on the Science AAS site, I was intrigued. Sadly, pay walled for me. Thankfully, they're not the only ones reporting. Read on about seismology, railroads and ghosts: https://mashable.com/article/earthquake-railroad-ghost-story St. Elmo’s fire, ball lightning? Are these more common around earthquakes? Quote Link to comment Share on other sites More sharing options...
AckSed Posted February 7 Share Posted February 7 Haven't heard this before, but the Deep Space Network is being upgraded with 6 new dishes and the 5th was installed at the end of last year: https://www.nasa.gov/centers-and-facilities/jpl/nasas-new-deep-space-network-antenna-has-its-crowning-moment/ Quote Link to comment Share on other sites More sharing options...
darthgently Posted February 7 Share Posted February 7 Boeing preparing for the axe https://arstechnica.com/space/2025/02/boeing-has-informed-its-employees-that-nasa-may-cancel-sls-contracts/ Quote Link to comment Share on other sites More sharing options...
magnemoe Posted February 7 Share Posted February 7 On 2/1/2025 at 1:11 AM, darthgently said: St. Elmo’s fire, ball lightning? Are these more common around earthquakes? St. Elmo’s fire is pretty well understood and related to areas with an risk of lightning. Guess you don't get it on modern ships as their masts are for radar and radio antennas and is seriously grounded to protect this equipment from lighting strikes. "Modern" as in WW 2 as an minimum for warships. Guess lots of cargo ships just unplugged the antenna. Quote Link to comment Share on other sites More sharing options...
darthgently Posted February 8 Share Posted February 8 Excellent interview with Stephen Clark of Ars Technica. Quote Link to comment Share on other sites More sharing options...
darthgently Posted February 12 Share Posted February 12 Put some rockets on the barby Quote Link to comment Share on other sites More sharing options...
AckSed Posted February 13 Share Posted February 13 Images of 74 exocometary belts around other stars: https://www.tcd.ie/news_events/articles/2025/astrophysicists-reveal-structure-of-74-exocomet-belts-orbiting-nearby-stars-in-landmark-survey/ Quote Link to comment Share on other sites More sharing options...
darthgently Posted February 14 Share Posted February 14 If this happened today we’d be up the creek paddling with our hands and feet Quote Link to comment Share on other sites More sharing options...
AckSed Posted February 14 Share Posted February 14 Link to the Wiki article he links to: https://en.wikipedia.org/wiki/774–775_carbon-14_spike Quote Link to comment Share on other sites More sharing options...
darthgently Posted Wednesday at 02:30 PM Share Posted Wednesday at 02:30 PM (edited) Toronto jet landing crash analysis by a Navy pilot and a former NTSB investigator Edited Wednesday at 02:32 PM by darthgently Quote Link to comment Share on other sites More sharing options...
darthgently Posted Wednesday at 03:28 PM Share Posted Wednesday at 03:28 PM Asteroid 2024 YR4 update, nice details as much as can be expected at this point https://arstechnica.com/space/2025/02/the-odds-of-a-city-killer-asteroid-impact-in-2032-keep-rising-should-we-be-worried/ Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted Wednesday at 04:30 PM Share Posted Wednesday at 04:30 PM 1 hour ago, darthgently said: Toronto jet landing crash analysis by a Navy pilot and a former NTSB investigator Didn’t watch that clip, but from what I saw/heard on the news, the pilot didn’t flare and landed hard, collapsing the starboard gear and tearing off the starboard wing. The lift from the left wing then rolled the fuselage over. Amazing nobody died, and only one person remains in hospital. Quote Link to comment Share on other sites More sharing options...
darthgently Posted Wednesday at 05:34 PM Share Posted Wednesday at 05:34 PM (edited) 1 hour ago, StrandedonEarth said: Didn’t watch that clip, but from what I saw/heard on the news, the pilot didn’t flare and landed hard, collapsing the starboard gear and tearing off the starboard wing. The lift from the left wing then rolled the fuselage over. Amazing nobody died, and only one person remains in hospital. Yes, that was covered but also some other interesting observations from the guys with solid backgrounds wrt pilot training and such. The fire response team was right on it and had the plane foamed in record time apparently Edited Wednesday at 05:35 PM by darthgently Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted Wednesday at 07:48 PM Share Posted Wednesday at 07:48 PM 2 hours ago, darthgently said: The fire response team was right on it and had the plane foamed in record time apparently I also heard that a medevac chopper was ready to take off so it only had to make a short hop to also be there in presumably record time Quote Link to comment Share on other sites More sharing options...
tater Posted 14 hours ago Share Posted 14 hours ago Just a cool 4k image download of Andromeda: https://cosmicbackground.io/pages/ea_the-sky-looks-back Quote Link to comment Share on other sites More sharing options...
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