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 Friday at 03:03 PM Share Posted Friday at 03:03 PM 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 Friday at 10:14 PM Share Posted Friday at 10:14 PM 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 Friday at 11:47 PM Share Posted Friday at 11:47 PM 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 Saturday at 05:23 PM Share Posted Saturday at 05:23 PM Excellent interview with Stephen Clark of Ars Technica. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.