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Space and Astronomy Thread |
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#3151 |
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Join Date: May 2004
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OMG - It's so huge
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Spoiler
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#3152 |
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Join Date: Feb 2014
Location: The Sixth Circle of Hell
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#3153 |
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Join Date: Jun 2012
Location: Newport Pagnell
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3.15am this morning, 17th March, possible significant meteor "fireball" lights up the night sky across UK.
There seems to have been a noticeable possible meteor sighting in the sky across the UK this morning at 3.15am, and I saw it myself, brightly lighting up the sky for a brief moment, so turned the radio on to hear it being widely reported on Radio 5 Live for 15 minutes who as I write are attempting to get more official details. Plenty of callers mention seeing a blue or green flashing "fireball" of light across the whole sky before seeing something streaking off. Has a large meteorite grazed the atmosphere or burnt up entirely on impact? It was quite impressive and seems to have been noticed from the west to east coast of England and right up to Southern Scotland too. Just been hearing about "fireball season" which is prominent around the spring equinox. Never heard that term before, but it would appear that we night owls, insomniacs and drivers out and about have tonight had a really great sighting nationwide. |
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#3154 |
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Inactive Member
Join Date: Oct 2008
Location: The Seventh Circle of Hell™
Posts: 10,220
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#3155 |
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Join Date: Feb 2014
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http://www.livescience.com/54058-plu...tem-birth.html
http://www.livescience.com/54083-dar...particles.html http://www.space.com/20502-dark-matt...fographic.html http://phys.org/news/2016-03-pluto-reveals-secrets.html http://news.discovery.com/space/plut...ace-160317.htm http://phys.org/news/2016-03-hubble-...ter-stars.html |
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#3156 |
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Join Date: Feb 2014
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Plenty of interest recently.
http://phys.org/news/2016-03-astrono...shockwave.html http://www.sci-news.com/astronomy/tw...ing-03719.html http://www.livescience.com/54131-fir...by-kepler.html http://phys.org/news/2016-03-discove...upernovae.html http://phys.org/news/2016-03-bright-...led-ceres.html http://www.sci-news.com/space/new-im...ots-03722.html http://phenomena.nationalgeographic....lake-on-pluto/ |
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#3157 |
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Join Date: Feb 2014
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Is the answer to Life the Universe and Everything 42?
No - but this very interesting (and long) article explores our current theories about reality and everything in it. http://www.bbc.com/earth/story/20160...esides-our-own |
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#3158 |
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Join Date: Sep 2012
Location: Gloucestershire, England
Posts: 4,782
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Quote:
Is the answer to Life the Universe and Everything 42?
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#3159 |
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Forum Member
Join Date: Nov 2002
Posts: 76,804
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Did anyone watch the latest Jim Al-Khalili documentary on BBC4 last night ?
It was quite good.......a run through of the major discoveries along the road to the Big Bang Theory I knew pretty much all of it but it was well put together........as usual in Jim's documentaries he tells the story episodically by looking at a different person every 10 minutes or so The only one I wasn't aware of was the woman who discovered the composition of the Sun and by extension all the other stars and the Universe I'd never heard of her......and she was British !.........Cosmology is a boy's game !......
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#3160 |
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Join Date: Feb 2014
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Quote:
Did anyone watch the latest Jim Al-Khalili documentary on BBC4 last night ?
It was quite good.......a run through of the major discoveries along the road to the Big Bang Theory I knew pretty much all of it but it was well put together........as usual in Jim's documentaries he tells the story episodically by looking at a different person every 10 minutes or so The only one I wasn't aware of was the woman who discovered the composition of the Sun and by extension all the other stars and the Universe I'd never heard of her......and she was British !.........Cosmology is a boy's game !...... ![]() Horizon on shortly about Gravity which I will record as well.
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#3161 |
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Join Date: Nov 2002
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Quote:
Horizon on shortly about Gravity which I will record as well.
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#3162 |
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Join Date: Feb 2014
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Quote:
I'm going to watch it now.........
![]() David Bowie asked the question. This article discusses how we may finally find the answer. ![]() http://www.airspacemag.com/space/lif...3ca8950&no-ist Did Ceres once have an ocean? http://phenomena.nationalgeographic....n-ocean-world/ |
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#3164 |
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Join Date: May 2004
Location: Storbritannia
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The huge hidden galaxies
Here's the Milky Way and very pretty it is. However, what the planar disc of the Milky Way Galaxy does do is obscure the things that are behind it. That includes hundreds of new to science hidden galaxies - see http://www.space.com/31862-hidden-ga...aze-video.html Two of those galaxies, Maffei 1 and Maffei 2 are relatively close by at around 10 million light years away and the links are below: Maffei 1 https://en.wikipedia.org/wiki/Maffei_1 https://www.google.co.uk/search?q=ma...w=1024&bih=658 https://www.youtube.com/watch?v=3qsoLAL7Ops (that one would be a great sight in the sky were it not for all the obscuring matter) Maffei 2 https://en.wikipedia.org/wiki/Maffei_2 https://www.google.co.uk/search?q=ma...w=1024&bih=658 |
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#3165 |
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Join Date: Feb 2014
Location: The Sixth Circle of Hell
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Quote:
The huge hidden galaxies
Here's the Milky Way and very pretty it is. However, what the planar disc of the Milky Way Galaxy does do is obscure the things that are behind it. That includes hundreds of new to science hidden galaxies - see http://www.space.com/31862-hidden-ga...aze-video.html Two of those galaxies, Maffei 1 and Maffei 2 are relatively close by at around 10 million light years away and the links are below: Maffei 1 https://en.wikipedia.org/wiki/Maffei_1 https://www.google.co.uk/search?q=ma...w=1024&bih=658 https://www.youtube.com/watch?v=3qsoLAL7Ops (that one would be a great sight in the sky were it not for all the obscuring matter) Maffei 2 https://en.wikipedia.org/wiki/Maffei_2 https://www.google.co.uk/search?q=ma...w=1024&bih=658 ![]() A computer model explains the sustained eruptions on Enceladus. http://phys.org/news/2016-03-sustain...on-saturn.html |
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#3166 |
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Join Date: Feb 2014
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A comet or asteroid has just been captured smashing into Jupiter by amateur astronomers.
![]() http://www.slate.com/blogs/bad_astro...arch_2016.html http://news.discovery.com/space/astr...ock-160329.htm http://www.livescience.com/54224-jup...mer-video.html |
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#3167 |
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Quote:
A comet or asteroid has just been captured smashing into Jupiter by amateur astronomers.
![]() http://www.slate.com/blogs/bad_astro...arch_2016.html http://news.discovery.com/space/astr...ock-160329.htm http://www.livescience.com/54224-jup...mer-video.html |
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#3168 |
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Quote:
That must have been a tremendously powerful collision and I hope that large professional observatory telescopes will now be trained on Jupiter to see if there are any remnant after effects just as there were following the impact of Comet Shoemaker–Levy 9 when it hit Jupiter in 1994 if l recall correctly.
We can expect more news in the near future I think.
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#3169 |
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Join Date: Jul 2003
Location: Stoke-On-Trent
Posts: 7,158
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Horizon
The Mystery of Dark Energy Quote:
Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up. Tonight, BBC2 @ 8pmThe effects of dark energy were discovered in 1998 but physicists still don't know what it is. Worse, its very existence calls into question Albert Einstein's general theory of relativity - the cornerstone of modern physics. The hunt for the identity of dark energy is on. Experiments on earth and in space generate data that might provide a clue, but there are also hopes that another Einstein might emerge - someone who can write a new theory explaining the mystery of the dark energy. http://www.bbc.co.uk/programmes/b0761llv |
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#3170 |
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Join Date: May 2004
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Quote:
I am sure they will be.
We can expect more news in the near future I think. ![]() Jupiter has its good and bad points: Pro It acts as a gravitational magnet for any dangerous rubbish coming from the outer solar sytem Con Its powerful gravity prevented a proper planet from forming where the asteroid belt is thus leaving a pile of dangerous celestial planetary rubble floating around in the inner solar system. Quote:
http://www.bbc.co.uk/programmes/b075...pisodes/player |
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#3171 |
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Join Date: Feb 2014
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I will be catching up with all three programmes in the near future.
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#3172 |
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Join Date: May 2004
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Quote:
Pro It was really good to see more women involved in high level science. ![]() Con The upshot of that programme was basically "We still don't have a feckin clue". ![]() That said, they should have gone and asked the real brains on the planet in the Perimeter Institute: https://en.wikipedia.org/wiki/Perime...etical_Physics (Interesting story - they were set up with megafunds from Blackberry before they went belly up) New! More evidence for Planet Nine as odd celestial alignment emerges. A small world leads the way. There’s another tantalising hint that an undiscovered ninth planet lurks in the outer reaches of the solar system. |
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#3173 |
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Join Date: May 2004
Location: Storbritannia
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Updates from the Planetary Society:
Planetary Radio Live: All These Worlds…Our live conversation about “Planet 9” and the amazing diversity of our solar system, featuring Konstantin Batygin and Mike Brown of Caltech, Senior Editor Emily Lakdawalla, Bill Nye the Science Guy and Cassini Project Scientist Linda Spilker. We close with a special K9 edition of What’s Up! Snapshots from Space - LPSC 2016: So. Much. Ceres. Posted by Emily Lakdawalla on 2016/03/30 06:31 CDT |
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#3174 |
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White Dwarf with an almost pure oxygen atmosphere.
http://phys.org/news/2016-04-white-d...tmosphere.html http://www.dailymail.co.uk/sciencete...re-oxygen.html http://www.theverge.com/2016/3/31/11...-stellar-death http://www.sci-news.com/astronomy/wh...ere-03751.html |
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#3175 |
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Join Date: May 2004
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There's an interesting planetary new update from the Planetary Society's Emily Lakdawalla including an excellent picture of Comet P67 backlit by the Sun: http://www.planetary.org/blogs/emily...pril-2016.html
In other news, Konstantin Batygin and Mike Brown have now gone on record as saying that they think that the proposed new Planet Nine could be found within just 2 years. There are some links to more Planet Nine news below: http://www.scientificamerican.com/ar...d-planet-nine/ http://www.redorbit.com/news/space/1...t-nine-040616/ https://www.newscientist.com/article...en-by-the-sun/ |
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