|
Image of the Day Images that will blow your mind - every day. [Blog] [RSS] [XML] |
|
Thread Tools | Rate Thread | Display Modes |
01-10-2015, 05:24 PM | #16 |
UNDER CONDITIONAL MITIGATION
Join Date: Mar 2004
Location: Austin, TX
Posts: 20,012
|
Obviously I get how the light of their destruction hasn't reached us yet and we're looking 7,000 years into the past and all that... but how do we actually know that they were destroyed 6,000 years ago? The article just says that we've known it since 2007, and that "with our telescopes" we can... somehow see something different than what we can see? Which makes no sense, our telescopes are here where we are. Hubble is less than 350 miles up from the Earth's surface, which is nothing when you're talking about distances in light years.
My brain keeps trying to come up with some way we could know the base fact that the nearby supernova happened, and we know how big supernovas are thus we can assume we will see the Pillars get destroyed eventually, but it's not like we could detect a front wave of radiation or something else from the supernova that moves faster than light, because nothing moves faster than light. Answers plz. |
01-10-2015, 05:26 PM | #17 |
UNDER CONDITIONAL MITIGATION
Join Date: Mar 2004
Location: Austin, TX
Posts: 20,012
|
Oh wait oh wait! If the supernova were halfway between us and the Pillars, we could have seen it happen already, and know that the outward explosion was also traveling backwards towards the Pillars, which were farther away. And we could calculate the speed of the supernova explosion traveling away from us, even if we can't see it, because we know how fast that shit normally travels.
Okay, I'm fine now. |
01-10-2015, 05:27 PM | #18 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
|
something must move faster than light
__________________
This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
01-10-2015, 05:29 PM | #19 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
|
or
what do you mean by 'destroyed'? like it's a cloud formation that will have re-shaped to another configuration by the time the next 6000 years of light reaches us? are we extrapolating from earlier pictures of 7,030 year old light?
__________________
This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
01-10-2015, 05:31 PM | #20 |
UNDER CONDITIONAL MITIGATION
Join Date: Mar 2004
Location: Austin, TX
Posts: 20,012
|
Yeah, except it will only be 1000 years. It's 7,000 light years away, and we know it was hit* by a supernova 6,000 years ago, so in 1,000 more years we'll actually see it.
*And yeah, I think it's basically just going to be like a cloud formation that whiffs away into a new shape, on a grand scale. |
01-10-2015, 05:33 PM | #21 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
|
so the supernova was less than 6,000 years ago?
__________________
This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
01-10-2015, 05:48 PM | #22 |
To shreds, you say?
Join Date: Aug 2004
Location: in the house and on the street-how many, many feet we meet!
Posts: 18,449
|
I'd love to hang out with you two smoking grass. Except I don't think CF does that.
__________________
The internet is a hateful stew of vomit you can never take completely seriously. - Her Fobs |
01-10-2015, 06:16 PM | #23 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
|
eeer!
__________________
This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
01-10-2015, 07:18 PM | #24 | |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
Quote:
We all know those ass-tronomers are perverts.
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
|
01-10-2015, 10:01 PM | #25 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
Just look what Hubble did a few days ago, a 1.5 Billion pixel photograph.
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
01-14-2015, 04:33 AM | #26 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
|
We are so nothing
__________________
This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
01-14-2015, 05:11 AM | #27 |
To shreds, you say?
Join Date: Aug 2004
Location: in the house and on the street-how many, many feet we meet!
Posts: 18,449
|
black holes are dense
__________________
The internet is a hateful stew of vomit you can never take completely seriously. - Her Fobs |
01-14-2015, 11:53 AM | #28 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
We are stardust
Billion year old carbon We are golden Caught in the devil's bargain
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
01-14-2015, 01:37 PM | #30 |
Master Dwellar
Join Date: Oct 2006
Location: Los Angeles, CA
Posts: 4,412
|
I'm reminded of a quote from my favorite book series by David Eddings:
"Man thinks he rules the world but there are all manner of creatures who are indifferent to our overlordship."
__________________
Laugh and the world laughs with you; cry and the world laughs AT you. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|