welshbairn Posted April 27, 2017 Share Posted April 27, 2017 Was curious how fast Cassini has to travel to avoid being sucked into Saturn (escape velocity from its surface is 36 km/sec), and found a problem for anyone contemplating some intergalactic travel. The escape velocity required to leave the Milky Way is about the same as leaving the surface of the Sun, about 600 km/sec. Quite nippy. https://en.wikipedia.org/wiki/Escape_velocity#List_of_escape_velocities 0 Quote Link to comment Share on other sites More sharing options...
FlyerTon Posted April 27, 2017 Share Posted April 27, 2017 (edited) Some of the pics from Cassini 'Grand Finale Dive #1' https://saturn.jpl.nasa.gov/news/3032/nasa-spacecraft-dives-between-saturn-and-its-rings/ These unprocessed images show features in Saturn's atmosphere from closer than ever before. The view was captured by NASA's Cassini spacecraft during its first Grand Finale dive past the planet on April 26, 2017. Credit: NASA/JPL-Caltech/Space Science Institute Edited April 27, 2017 by FlyerTon 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted April 27, 2017 Share Posted April 27, 2017 Heard a guy on Radio 4 this morning talking about how he'd spent 27 years working on Cassini. English guy on the Today programme, bit tearful about the end. Not a bad way to spend a life, must be about the most productive space project in history. 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted May 1, 2017 Share Posted May 1, 2017 Space X about to launch and attempt to land stage 1. https://spaceflightnow.com/2017/04/29/nrol-76-mission-status-center/ 0 Quote Link to comment Share on other sites More sharing options...
dorlomin Posted May 1, 2017 Share Posted May 1, 2017 7 minutes ago, welshbairn said: Space X about to launch and attempt to land stage 1. https://spaceflightnow.com/2017/04/29/nrol-76-mission-status-center/ space is cool as f*ck 0 Quote Link to comment Share on other sites More sharing options...
Newbornbairn Posted May 1, 2017 Share Posted May 1, 2017 This is awesome, just incredible. I thought the thing just flew up and fell down. 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted May 11, 2017 Share Posted May 11, 2017 (edited) For insomniacs, here's an hour plus lecture about the Juno mission to Jupiter, and why, by someone who knows. A bit OU. Edited May 11, 2017 by welshbairn 0 Quote Link to comment Share on other sites More sharing options...
thisal Posted May 11, 2017 Share Posted May 11, 2017 10 hours ago, welshbairn said: For insomniacs, here's an hour plus lecture about the Juno mission to Jupiter, and why, by someone who knows. A bit OU. How tickled I am to be here on Jupiter 0 Quote Link to comment Share on other sites More sharing options...
topcat(The most tip top) Posted May 11, 2017 Share Posted May 11, 2017 How tickled I am to be here on Jupiter By Jove!How titterfalatious 0 Quote Link to comment Share on other sites More sharing options...
Newbornbairn Posted June 9, 2017 Share Posted June 9, 2017 SpaceX chosen by US Military to launch their mini space shuttle - SpaceX launching its first X-37B mission in August http://www.janes.com/article/71229/spacex-launching-its-first-x-37b-mission-in-august 0 Quote Link to comment Share on other sites More sharing options...
D.A.F.C Posted June 9, 2017 Share Posted June 9, 2017 Heard a guy on Radio 4 this morning talking about how he'd spent 27 years working on Cassini. English guy on the Today programme, bit tearful about the end. Not a bad way to spend a life, must be about the most productive space project in history. RIP 0 Quote Link to comment Share on other sites More sharing options...
git-intae-thum Posted June 20, 2017 Share Posted June 20, 2017 The multiverse theory is absolutely mind boiling, but increasingly being seen as a possibilty. If true,surely the next big jump will be finding ways to prove this theory and then ways of exploiting it. Quantam computers could hold the key. Imagine the furore if folk became aware that each choice or random chance in life carried out differently in a different multiverse. No more religion and big imaginery pals in the sky for a start. Imagine if we could jump between these spaces. Mentally this future is being theorised...... I quite fancy being king of scots for a day. or maybe even flying on the back of a pteradactyl across pangea. wicked. 0 Quote Link to comment Share on other sites More sharing options...
Fide Posted June 20, 2017 Share Posted June 20, 2017 On 23/02/2017 at 06:55, Dee Man said: I was listening to a report on it last night. If we travelled there using the most advanced of the rockets we have available to us at the moment, it would take us 700,000 years to get there. I'm sorry, but you can show me all the graphics and videos you like about the vastness of the universe and how insignificant Earth is but I will never be able to wrap my head around that shit. Maybe the aliens on that planet have got some better modes of transport and we could meet them at Pluto or something. Maybe get a few pints in. How's this for a mindblower. If you travelled from one side of the universe to the other at the speed of light, it would take 93 billion years. Just think about that. At 186,000 MILES PER SECOND, it would still take 93 billion years to transverse the cosmos. 0 Quote Link to comment Share on other sites More sharing options...
Dee Man Posted June 20, 2017 Share Posted June 20, 2017 7 minutes ago, Fide said: How's this for a mindblower. If you travelled from one side of the universe to the other at the speed of light, it would take 93 billion years. Just think about that. At 186,000 MILES PER SECOND, it would still take 93 billion years to transverse the cosmos. 0 Quote Link to comment Share on other sites More sharing options...
Cerberus Posted June 20, 2017 Share Posted June 20, 2017 Nature. You scary. 0 Quote Link to comment Share on other sites More sharing options...
Fide Posted June 20, 2017 Share Posted June 20, 2017 1 hour ago, Melanius Mullarkey said: Define "one side of the universe" in 10,000 words or less please stating whether this 93 billion years takes into account universe expansion/contraction. In fact, don't bother. I shall explain, my young Padowan. Although the universe is around 13.8 billion years old, due to expansion, the "edge" of the observable universe is around 46 billion light years away. And because we can look for 46 billion light years in all directions, you can imagine us being an imaginary centre of a universe 92 - 93 billion light years across. Of course, the universe has no centre and no edge, but, yeah, 93 billion light years across. And to put that into context, at the speed of light, you could circumnavigate the Earth 7 times in one second. 0 Quote Link to comment Share on other sites More sharing options...
Boghead ranter Posted June 20, 2017 Share Posted June 20, 2017 6 hours ago, git-intae-thum said: The multiverse theory is absolutely mind boiling, but increasingly being seen as a possibilty. If true,surely the next big jump will be finding ways to prove this theory and then ways of exploiting it. Quantam computers could hold the key. Imagine the furore if folk became aware that each choice or random chance in life carried out differently in a different multiverse. No more religion and big imaginery pals in the sky for a start. Imagine if we could jump between these spaces. Mentally this future is being theorised...... I quite fancy being king of scots for a day. or maybe even flying on the back of a pteradactyl across pangea. wicked. "The lord created mutilverses to test us" would be the standard bollocks spoken. Just like they do for anything else that science (or just plain common sense) debunks. 0 Quote Link to comment Share on other sites More sharing options...
Fide Posted June 20, 2017 Share Posted June 20, 2017 Since I'm in aboot the universe thread again, I'll post my favourite speech of all time. This should be taught in schools and should be compulsory viewing for every human being: 0 Quote Link to comment Share on other sites More sharing options...
Tommy Nooka Posted June 20, 2017 Share Posted June 20, 2017 8 hours ago, git-intae-thum said: The multiverse theory is absolutely mind boiling, but increasingly being seen as a possibilty. If true,surely the next big jump will be finding ways to prove this theory and then ways of exploiting it. Quantam computers could hold the key. Imagine the furore if folk became aware that each choice or random chance in life carried out differently in a different multiverse. No more religion and big imaginery pals in the sky for a start. Imagine if we could jump between these spaces. Mentally this future is being theorised...... I quite fancy being king of scots for a day. or maybe even flying on the back of a pteradactyl across pangea. wicked. Ouch!!! You don't need to imagine dimension hopping, just watch Rick & Morty. 0 Quote Link to comment Share on other sites More sharing options...
DA Baracus Posted June 20, 2017 Share Posted June 20, 2017 The mutilverse theory makes sense, as pretty much everything you do, or don't do, has consequences that will travel around the world. It's why I always hate when football commentators assume that if a goal had been scored that the game would have went in the exact same manner (e.g. "he should have a hattrick!") or some such pish. The smallest things we do, or don't do, have knock on effects. When these effects combine with other effects, and so on and so on, you simply don't know what can, will, won't or will not happen. 0 Quote Link to comment Share on other sites More sharing options...
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