User Panel
User Panel
User Panel
|
Posted: 3/17/2015 8:41:49 PM EDT
[#1]
ST. PATRICK'S DAY GEOMAGNETIC STORM: Arriving earlier than expected, a CME hit Earth's magnetic field on March 17th at approximately 04:30 UT. At first, the impact sparked a relatively mild G1-class (Kp=5) geomagnetic storm. Since then, however, the storm has intensified to G4-class (Kp=8), ranking it as the strongest geomagnetic storm of the current solar cycle. This storm is underway now. Before sunrise on St. Patrick's Day, bright auroras were sighted over several northern-tier US states including Minnesota, Wisconsin, Montana, the Dakotas and Washington Space Weather Take a look outside and to the North if you have a clear sky after sunset! |
|
|
|
Posted: 3/17/2015 8:58:19 PM EDT
[#2]
Quote HistoryQuote HistoryQuoted: ST. PATRICK'S DAY GEOMAGNETIC STORM: Arriving earlier than expected, a CME hit Earth's magnetic field on March 17th at approximately 04:30 UT. At first, the impact sparked a relatively mild G1-class (Kp=5) geomagnetic storm. Since then, however, the storm has intensified to G4-class (Kp=8), ranking it as the strongest geomagnetic storm of the current solar cycle. This storm is underway now. Before sunrise on St. Patrick's Day, bright auroras were sighted over several northern-tier US states including Minnesota, Wisconsin, Montana, the Dakotas and Washington Space Weather Take a look outside and to the North if you have a clear sky after sunset! Hi Res  Aurora on Jupiter: High Res  |
|
|
|
Posted: 3/17/2015 9:37:16 PM EDT
[#3]
Here are the radio signals of some pulsars converted over to false audio:
 |
|
|
|
Posted: 3/21/2015 2:59:58 PM EDT
[#4]
|
|
|
|
Posted: 3/21/2015 3:04:08 PM EDT
[#5]
|
|
|
|
Posted: 3/21/2015 3:10:17 PM EDT
[#6]
ISS passing in front of the sun during yesterdays solar eclipse:
 |
|
|
|
Posted: 3/21/2015 3:19:13 PM EDT
[#7]
Jupiter's Moon Ganymede Has a Salty Ocean with More Water than Earth
http://www.space.com/28807-jupiter-moon-ganymede-salty-ocean.html  |
|
|
|
Posted: 3/21/2015 4:16:23 PM EDT
[#8]
This is more of a curiosity, but we usually think of our nearest star as being the Proxima Centauri at 4.25 light-years, so it was pretty astonishing to find out that we had a flyby a binary star about 70 000 years ago, which came within the Oort cloud, passing only 0.8 light years from our Sun.
Astronomers announced this week – February 16, 2015 – that they’ve now identified the closest known flyby of a star, really two stars, to our solar system. The culprit is a binary system consisting of a low-mass red dwarf star (with a mass about 8% that of our sun) and a brown dwarf companion (with a mass about 6% that of the sun). This pair passed through our solar system’s outer Oort comet cloud some 70,000 years ago. No other star is known to have ever approached our solar system this close – five times closer than the current closest star, Proxima Centauri. http://earthsky.org/space/roaming-star-system-a-near-miss 
|
|
|
|
Posted: 3/21/2015 4:26:23 PM EDT
[#9]
Awesome thread OP!
Seeing that Apollo 8 footage brought back some memories. I was there when it went up. |
|
|
|
Posted: 3/22/2015 10:33:08 AM EDT
[#10]
Anyone wondering where all of the pictures of Ceres are?
Dawn is sliding into orbit, catching up with the asteroid slowly and easing its way closer. To do that it flew past Ceres a bit, and is now on the side of Ceres away from the Sun. From its vantage point it’s looking down on the dark side of the asteroid. It’s also on a trajectory that took it farther away from Ceres, and is now falling down closer to it (like tossing a rock in the air, and having it fall back down into your hand). From here: http://www.slate.com/blogs/bad_astronomy/2015/03/22/ceres_new_pictures_will_come_soon.html  |
|
|
|
Posted: 3/22/2015 12:00:13 PM EDT
[#11]
Quote HistoryQuoted:
ISS passing in front of the sun during yesterdays solar eclipse: http://i.kinja-img.com/gawker-media/image/upload/s--EB9IuzLP--/mjd0ggwb4ddjf4bvlkzu.gif dammit! came here to post this one. you have to be fast in the TescoVee astro thread, looks like. tactical retreat until i can come back w/ a better loadout. 
|
|
|
|
Posted: 3/22/2015 12:06:27 PM EDT
[#12]
Big gif of the triple transit of Jupiter by Callisto, Io, and Europa back in January. Apparently it is fairly rare for us to be able to observe an event like this. If you look closely at the gif you can see two smaller moons, Amalthea and Thebe, also transiting.
|
|
|
|
Posted: 3/22/2015 12:14:48 PM EDT
[#13]
Quote HistoryQuoted: dammit! came here to post this one. you have to be fast in the TescoVee astro thread, looks like. tactical retreat until i can come back w/ a better loadout. Quote HistoryQuoted: Quoted: ISS passing in front of the sun during yesterdays solar eclipse: http://i.kinja-img.com/gawker-media/image/upload/s--EB9IuzLP--/mjd0ggwb4ddjf4bvlkzu.gif dammit! came here to post this one. you have to be fast in the TescoVee astro thread, looks like. tactical retreat until i can come back w/ a better loadout.  Hows this for mindblowing:  Still enough room to cram pluto in there too. |
|
|
|
Posted: 3/22/2015 12:27:12 PM EDT
[#14]
Quote HistoryQuoted:
Hows this for mindblowing: http://i0.wp.com/www.universetoday.com/wp-content/uploads/2014/10/CLqdeKf.jpg Still enough room to cram pluto in there too. Quote HistoryQuoted:
Quoted:
Quoted:
ISS passing in front of the sun during yesterdays solar eclipse: http://i.kinja-img.com/gawker-media/image/upload/s--EB9IuzLP--/mjd0ggwb4ddjf4bvlkzu.gif dammit! came here to post this one. you have to be fast in the TescoVee astro thread, looks like. tactical retreat until i can come back w/ a better loadout.
Hows this for mindblowing: http://i0.wp.com/www.universetoday.com/wp-content/uploads/2014/10/CLqdeKf.jpg Still enough room to cram pluto in there too. Wow. I have not seen the scale like this showing size/distance - impressive. |
|
|
|
Posted: 3/22/2015 12:32:12 PM EDT
[#15]
Comet Lovejoy:
 |
|
|
|
Posted: 3/22/2015 12:38:19 PM EDT
[#16]
|
|
|
|
Posted: 3/22/2015 12:41:49 PM EDT
[#17]
Quote HistoryQuoted:
ISS passing in front of the sun during yesterdays solar eclipse: http://i.kinja-img.com/gawker-media/image/upload/s--EB9IuzLP--/mjd0ggwb4ddjf4bvlkzu.gif I once watched the ISS, closely followed by the space shuttle, transit the face of the moon. Too cool. |
|
|
|
Posted: 3/22/2015 12:55:47 PM EDT
[#18]
Quote HistoryQuoted: I once watched the ISS, closely followed by the space shuttle, transit the face of the moon. Too cool. Quote HistoryQuoted: Quoted: ISS passing in front of the sun during yesterdays solar eclipse: http://i.kinja-img.com/gawker-media/image/upload/s--EB9IuzLP--/mjd0ggwb4ddjf4bvlkzu.gif I once watched the ISS, closely followed by the space shuttle, transit the face of the moon. Too cool. Smallest moon crescent ever photographed:    |
|
|
|
Posted: 3/22/2015 1:39:24 PM EDT
[#19]
Awesome thread. 4 pages in, but tagged for later. Hopefully with something to add.
|
|
|
|
Posted: 3/22/2015 1:52:00 PM EDT
[#20]
Quote HistoryQuoted:
Looks like Mars One may be a scam: http://www.dailymail.co.uk/sciencetech/article-2997937/Is-Mars-One-scam-Finalist-speaks-dangerously-flawed-application-process-says-ripping-supporters.html I think anyone with the tiniest clue about space transportation, celss (life support), energy budgets, failure analysis etc^6 pretty much figured that out. |
|
|
|
Posted: 3/22/2015 2:02:17 PM EDT
[#21]
Quote HistoryQuoted: I think anyone with the tiniest clue about space transportation, celss (life support), energy budgets, failure analysis etc^6 pretty much figured that out. Quote HistoryQuoted: Quoted: Looks like Mars One may be a scam: http://www.dailymail.co.uk/sciencetech/article-2997937/Is-Mars-One-scam-Finalist-speaks-dangerously-flawed-application-process-says-ripping-supporters.html I think anyone with the tiniest clue about space transportation, celss (life support), energy budgets, failure analysis etc^6 pretty much figured that out. |
|
|
|
Posted: 3/23/2015 10:21:53 AM EDT
[#22]
Nothing to add to this particular discussion today, but wanted to note that the wife and I watched "The Theory of Everything" (that Stephan Hawking life story movie) last night and both thoroughly enjoyed it. More of a love story than a science tour-de-force, but a good movie nonetheless.
|
|
|
|
Posted: 3/23/2015 1:48:13 PM EDT
[#23]
Today is the 50th anniversary of the day John Young snuck a corned beef sandwich onto Gemini 3.
|
|
|
|
Posted: 3/23/2015 6:13:50 PM EDT
[#24]
|
|
|
|
Posted: 3/24/2015 2:28:22 AM EDT
[#25]
And an intersting vid detailing a theoretical entry into Europas ocean.
|
|
|
|
Posted: 3/24/2015 3:56:16 AM EDT
[#26]
Quote HistoryQuoted:
If you really want a mind-fuck, look into M, string, and brane theory. Cosmology is wild. Not exactly on topic for this thread, but related since we're talking about the universe. The famous photon double slit experiment. The universe might not be what we think.  http://youtu.be/TT-_uCLwKhQ
Quote HistoryQuoted:
Quoted:
Damn, that's still hard to comprehend but doable. If you really want a mind-fuck, look into M, string, and brane theory. Cosmology is wild. Not exactly on topic for this thread, but related since we're talking about the universe. The famous photon double slit experiment. The universe might not be what we think. http://youtu.be/TT-_uCLwKhQ
Now that's getting into a whole different way of thinking. Just imagine the possibilities once we figure that out. Good stuff in this thread. |
|
|
|
Posted: 3/24/2015 4:18:43 AM EDT
[#27]
Quote HistoryQuoted: Now that's getting into a whole different way of thinking. Just imagine the possibilities once we figure that out. Good stuff in this thread. Quote HistoryQuoted: Quoted: Quoted: Damn, that's still hard to comprehend but doable. If you really want a mind-fuck, look into M, string, and brane theory. Cosmology is wild. Not exactly on topic for this thread, but related since we're talking about the universe. The famous photon double slit experiment. The universe might not be what we think. http://youtu.be/TT-_uCLwKhQNow that's getting into a whole different way of thinking. Just imagine the possibilities once we figure that out. Good stuff in this thread. how many times has the experiment been repeated with the same results? |
|
|
|
Posted: 3/24/2015 5:33:51 AM EDT
[#28]
Great thread, OP.
|
|
|
|
Posted: 3/24/2015 8:21:40 AM EDT
[#29]
Quote HistoryQuoted: thats awesome. how many times has the experiment been repeated with the same results? Quote HistoryQuoted: Quoted: Quoted: Quoted: Damn, that's still hard to comprehend but doable. If you really want a mind-fuck, look into M, string, and brane theory. Cosmology is wild. Not exactly on topic for this thread, but related since we're talking about the universe. The famous photon double slit experiment. The universe might not be what we think. http://youtu.be/TT-_uCLwKhQNow that's getting into a whole different way of thinking. Just imagine the possibilities once we figure that out. Good stuff in this thread. how many times has the experiment been repeated with the same results? |
|
|
|
Posted: 3/24/2015 8:42:08 AM EDT
[#30]
If you want to directly see a diffraction pattern you can do a single slit experiment right now. Pinch your thumb and forefinger together right in front of your eye. When they almost touch you can see diffraction lines between them.
|
|
|
|
Posted: 3/24/2015 1:25:38 PM EDT
[#31]
Quote HistoryQuoted: I hav a good friend who is a researcher at Yale. He has told me in conversation that we (general population) would be shocked by how much "here hold my beer while I try this" happens in real research labs. Not literally but a lot of off the cuff hunches turn into real research.  |
|
|
|
Posted: 3/24/2015 1:35:09 PM EDT
[#32]
Quote HistoryQuoted: We can't all get our ideas by being whacked in the head by an apple. Quote HistoryQuoted: Quoted: I hav a good friend who is a researcher at Yale. He has told me in conversation that we (general population) would be shocked by how much "here hold my beer while I try this" happens in real research labs. Not literally but a lot of off the cuff hunches turn into real research. According to some new research our solar system probably had much larger inner planets when it formed and Jupiter's gravity caused them to smash into each other. [A]s Jupiter moved inward, its gravitational pull would have slung these nascent inner worlds into close-knit, overlapping orbits. This would have set off a series of collisions that smashed these newborn worlds into pieces. |
|
|
|
Posted: 3/24/2015 6:50:50 PM EDT
[#33]
This is why the space station and manned space exploration is worth it.
https://youtu.be/RQL_5D3ROi4 hmmm... embedding isn't working for me at the moment... |
|
|
|
Posted: 3/24/2015 7:09:19 PM EDT
[#34]
Quote HistoryQuoted: This is why the space station and manned space exploration is worth it. https://youtu.be/RQL_5D3ROi4 hmmm... embedding isn't working for me at the moment... For a high res version follow this link and click the link under the image: http://www.space.com/23565-saturn-earth-photo-cassini-spacecraft.html  |
|
|
|
Posted: 3/24/2015 7:32:23 PM EDT
[#35]
Like the Apollo third stage impact crater I showed earlier, there are a bunch of other man made impacts we can see on other worlds.
Apollo 13:  Apollo 14:  Apollo 15:  Ranger 7 on the moon:  LADEE on the moon:  Beagle 2 on Mars:  If you dig around you can find more pics like this from the lunar and mars orbital reconnaissance vehicles. |
|
|
|
Posted: 3/24/2015 7:43:38 PM EDT
[#36]
Due to the the way the ISS orbits the Earth it has periods where the sun never sets on it. Tim lapse vid by astronaut Terry W. Verts: https://vine.co/v/OFBeXLzPUL3/embed/simple
 |
|
|
|
Posted: 3/24/2015 7:48:14 PM EDT
[#37]
What from Apollo 13 struck the moon? Or was that a pic taken from 13 of an earlier missions impact?
|
|
|
|
Posted: 3/24/2015 7:51:22 PM EDT
[#38]
Quote HistoryQuoted: What from Apollo 13 struck the moon? Or was that a pic taken from 13 of an earlier missions impact? |
|
|
|
Posted: 3/24/2015 7:54:49 PM EDT
[#39]
Quote HistoryQuoted: Those are impact craters from the third stages of the Saturn V rockets used to launch the missions. Quote HistoryQuoted: Quoted: What from Apollo 13 struck the moon? Or was that a pic taken from 13 of an earlier missions impact? Space Experiment Hunts for Key to Alzheimer's Disease in Weightlessness http://www.space.com/28902-alzheimers-disease-space-experiment.html?cmpid=514648_20150324_42627076&adbid=580511998439497729&adbpl=tw&adbpr=15431856 "Everybody wants a cure, but without knowing the actual cause of the disease, you're basically shooting in the dark," Dan Woodard, a project consultant from NASA's Kennedy Space Center, said in a statement. "We don't understand the true mechanism of the disease. If we're lucky, then we'll find out whether proteins will aggregate in space. Only in weightlessness can you produce an environment free of convection so you can see whether they form on their own. We expect to learn incrementally from this." |
|
|
|
Posted: 3/25/2015 7:34:40 PM EDT
[#40]
It's a fancy stick, but it's a stick.
|
|
|
|
Posted: 3/26/2015 11:28:05 PM EDT
[#41]
$30 toys-r-us telescope... Shaky ass ipotato... Enjoying the very dark skies of our new home..
|
|
|
|
Posted: 3/27/2015 7:03:47 PM EDT
[#42]
Quote HistoryQuoted: $30 toys-r-us telescope... Shaky ass ipotato... Enjoying the very dark skies of our new home.. http://i58.tinypic.com/vhyqmq.jpg  How did the kiddos react to seeing Jupiter's moons?Jupiter vid: |
|
|
|
Posted: 3/27/2015 8:00:28 PM EDT
[#43]
Quote HistoryQuoted:
$30 toys-r-us telescope... Shaky ass ipotato... Enjoying the very dark skies of our new home.. http://i58.tinypic.com/vhyqmq.jpg What is that an image of? |
|
|
|
Posted: 3/27/2015 8:16:44 PM EDT
[#44]
Quote HistoryQuoted: What is that an image of? Quote HistoryQuoted: Quoted: $30 toys-r-us telescope... Shaky ass ipotato... Enjoying the very dark skies of our new home.. http://i58.tinypic.com/vhyqmq.jpg What is that an image of?  If you have even a mediocre rifle scope or set of binoculars you can see them on a clear night during the right time of the year. Right now you can see them right after nightfall: http://earthsky.org/astronomy-essentials/visible-planets-tonight-mars-jupiter-venus-saturn-mercury#jupiter |
|
|
|
Posted: 3/27/2015 9:21:40 PM EDT
[#45]
I could see four, but the glare washed out one..
|
|
|
|
Posted: 3/27/2015 10:00:59 PM EDT
[#46]
Quote HistoryQuoted: I could see four, but the glare washed out one.. |
|
|
|
Posted: 4/1/2015 2:14:06 PM EDT
[#47]
|
|
|
|
Posted: 4/7/2015 12:08:04 AM EDT
[#48]
Bump for an awesome thread.
I don't have anything useful to contribute but I enjoy having my mind blown.
|
|
|
|
Posted: 4/7/2015 6:31:24 PM EDT
[#49]
Quote HistoryQuoted: Bump for an awesome thread. I don't have anything useful to contribute but I enjoy having my mind blown. Europa occulting Io:
 |
|
|
|
Posted: 4/8/2015 1:18:29 PM EDT
[#50]
Apparently Mars has glacial belts at its central latitudes that we can't see because they are covered by dust. The amount of water is thought to be enough to cover the entire planet in one meter of ice:
 |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
