First Images of Planets Outside our Solar System, page 1
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reply posted on 13-11-2008 @ 10:06 PM by easynow
reply to post by retzius



nice find,

None of the planets is remotely habitable, scientists said.


how do they know that ?




[edit on 13-11-2008 by easynow]


reply posted on 13-11-2008 @ 10:19 PM by Curious_Agnostic
reply to post by Magnus47



Thanks for the tip. I didn't notice a link to the photos at first. Here's a big photo of the one the hubble found:
imgsrc.hubblesite.org...


reply posted on 13-11-2008 @ 10:21 PM by logician magician
Originally posted by easynow
reply to
post by retzius



nice find,

None of the planets is remotely habitable, scientists said.


how do they know that ?

[edit on 13-11-2008 by easynow]


Spectroscopy, mass, distance from star, etc...

When they say "remotely habitable" they mean by the standard of life as we know it. We have no evidence that life exists in any other forms beyond carbon based, and speculation isn't necessary or even valid in this context.


reply posted on 13-11-2008 @ 11:28 PM by LiQuiD_FuSioN
Originally posted by easynow
reply to
post by retzius



nice find,

None of the planets is remotely habitable, scientists said.


how do they know that ?




[edit on 13-11-2008 by easynow]


Is our kids learnin'? lol @ the grammar mistake.

Nice find indeed.


reply posted on 13-11-2008 @ 11:42 PM by Anonymous ATS
The more we find out about systems outside of our own; the more it makes me think that we are unlikely to discover life that we would recognisable as life by our own standards or a planet that would ever be habitable by humans in our current form.

It seems our sun and it's planets are relatively small in relation to the other observable bodies out there; demonstrated in the article that states that the planets are "7-10 times the mass of Jupiter".

In our own solar system; Jupiter has more mass than the rest of the planets put together so the Planets in the article are massive in comparison to our own solar system standards.

This particular star; HR8799 is 1.5 times the mass of our sun making it again relatively small to the majority of observed stars ; some which are estimated to be upto 1000 times the mass of the Sun so it would be a fair assumption that the planets would need to be on similar scale to exisit in a conventional gravitational orbit....


Assuming known elementary particles exisit on these discovered stars and that these particles remain the same size throughout the Universe; the gravitational forces exerted by the planets would mean the life forms would probably be larger by multiple factors which in turn means they would need an overly complex respiratory system to process the oxygen/other particle to stay alive as the elementary particles would be tiny in comparison to the life forms they would support.


Lots of assumptions I know but I think it's likely that if life did exist ; it would be giant by our standards or unrecogniseable as they wouldnt require elemtary particles to exisit....

Any thoughts on this???



reply posted on 14-11-2008 @ 12:23 AM by snowen20
I hope no one takes this the wrong way but I have a question.

Why am I not impressed with this?
Everyone would say “No one can answer that but you.” That’s true but still its just like so what?
I mean ok they have found 326 planets, so what are they going to do about it?

The best they can hope for is an image that looks worse than the worst UFO photo you have ever seen, or an artists rendition.
No one anytime soon is going to do anything worthwhile in regards to these planets IMO.

I am trying to get excited about it and indeed I find it interesting and fun, but at the same time I realize my reasoning for such emotions is misplaced. Because when I see it I think to myself; “WOW I wonder how many planets are out there and how many may support life.” and “When will we be able to see more and possibly explore them?”

Then reality SLAPS me in the face and I realize; oh nothing is going to be done anytime soon to investigate such wonders.

Other worlds and possibly civilizations cant make people come together to work for an awesome goal.

No , nope not us we will just pittle around talking a whole lot of (S#@T) about what our plans are and maybe if we are lucky someone 500 years from now will point out those very same planets we are seeing today. Big Deal.

Uhhg.. I feel like the guy crashing a party here. I don’t mean to sound like “that Guy” but I don’t know, like I said I’m trying to be positive. Please don’t attack me I’m only stating my opinion and if someone can slap me around a little and make me see the grandeur of this find I’ll thank them.


reply posted on 14-11-2008 @ 03:05 AM by yeti101
reply to post by Anonymous ATS



we do not have the ability to detect smaller planets. Thats why we can only find big ones just now. Future telescopes will tell us if there are smaller rocky worlds closer to the star like earth.

snowen20, all we need is a dot of light from a planet and we can harvest a nice amount of data. We will be able to tell what kind of atmospheres exoplanets have. Maybe even find one with Oxygen,H2O, nitrogen & ozone just like earth.

In the next decade or so we will be able to define earths place in our galaxy. Rare or common? and that will give us an indication of how common life is. Its a question we have asked for thousands of years and we are on the edge of answering it. I guess if that doesnt excite you nothing in astronomy will.


three planets around HR 8799

[edit on 14-11-2008 by yeti101]


reply posted on 14-11-2008 @ 09:10 AM by Soylent Green Is People
Originally posted by LiQuiD_FuSioN
Originally posted by easynow
None of the planets is remotely habitable, scientists said.
Is our kids learnin'? lol @ the grammar mistake.

It's not technically a grammar mistake, since "none" means "Not one" (Not one of the planets is habitable)...however, using "are" is preferred to using "is" in that particular sentence.



reply to
post by snowen20


It is frustrating that we persoanlly may never learn much detail about these extra-solar planets in our lifetime, but for humanity as a whole THIS IS HUGE.

Extrasolor planetary science is in its infancy, and the things we are learning today will benifit our grandchildren and the rest of mankind in the future.

[edit on 11/14/2008 by Soylent Green Is People]


reply posted on 14-11-2008 @ 12:34 PM by snowen20
reply to post by ian990003100



THANNNNNNKKKK YOU!

Though I don’t know if it was NASA that published this I think it was originally an independent research by a foundation.

In any case, uhh yeah how about you rockin my world NASA I’m waiting.


reply posted on 14-11-2008 @ 01:59 PM by Kr0n0s
reply to post by retzius



Not the first image of a planet but still an interesting breakthrough for astronomers.
Heres an image that I posted here a while back that is also the "first" image of a exoplanet that orbits a sun like ours.




Though over 300 extrasolar planets have been found using other techniques, this picture likely represents the first direct image of a planet belonging to a star similar to the Sun.


Credit: Apod




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[edit on 14/11/08 by Jbird]
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