Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Solar system may be one of a kind
Reuters ^ | Thursday, August 5, 2004

Posted on 08/05/2004 10:56:29 AM PDT by presidio9

Our solar system may be unique after all, despite the discovery of at least 120 other systems with planets, astronomers said on Wednesday.

All the other solar systems that have been found have big, gassy planets circling too close to their stars to allow them to be anything like Earth or its fellow planets, the British and U.S.-based researchers said.

If that is the case, Earth-like planets will be very rare, the astronomers write in the latest issue of the Monthly Notices of the Royal Astronomical Society.

"Maybe these other extrasolar systems ... contain only the giant planets," said Mario Livio of the Space Telescope Science Institute in Baltimore.

Livio and colleagues took a close look at what is known about the other planetary systems that have been discovered.

(Excerpt) Read more at cnn.com ...


TOPICS: Astronomy
KEYWORDS: astronomy; belongsinreligion; donaldbrownlee; garbage; mariolivio; peterward; rareearth; rareearthnonsense; serialrantsjackass
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-80 ... 101-110 next last
To: presidio9

Great topic to which I have nothing to offer at this time. So, I'll just get the popcorn and read along. : )


41 posted on 08/05/2004 11:49:20 AM PDT by new cruelty
[ Post Reply | Private Reply | To 1 | View Replies]

To: ruiner

"I can't believe they'd actually write an article like this."

Look at the source, Reuters. The combined IQ of all the Reuters reporters added together would get smaller, when squared.


42 posted on 08/05/2004 11:53:16 AM PDT by norwaypinesavage
[ Post Reply | Private Reply | To 12 | View Replies]

To: ruiner
This article is extremely disingenuous. Currently the planets are detected by observing the "wobble" on the star created when the planet orbits. How much of a wobble would a planet in Jupiter's orbit have with a 12 year orbit? You would have to observe the star for at least 12 years to see a wobble.
43 posted on 08/05/2004 11:53:51 AM PDT by Rich_E
[ Post Reply | Private Reply | To 12 | View Replies]

To: Arthalion

The orbiting earth detector telescope is due for launch in just a few years. Earlier they had looked back at earth to get our characteristic signature in case they spot another earth out there so they would recognize it.


44 posted on 08/05/2004 11:58:52 AM PDT by RightWhale (Withdraw from the 1967 UN Outer Space Treaty and establish property rights)
[ Post Reply | Private Reply | To 39 | View Replies]

To: RadioAstronomer

Science PING!


45 posted on 08/05/2004 11:59:01 AM PDT by Boomer Geezer (God Bless ALL of our military and Vets -- past and present!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: presidio9

Of course all the newly discovered solar systems are big gassy planets orbiting close to their stars. Those are the only systems our science can currently detect.


46 posted on 08/05/2004 12:02:16 PM PDT by doc30
[ Post Reply | Private Reply | To 1 | View Replies]

To: SerialRants
Hmm. 250 people read it. Any idea how many people took a glance at it and thought, "lame" and bypassed it? Of course not. So considering the thousands of visitors that carouse these forums and the only 250 that actually read the post in that half hour, perhaps I am not in the minority...

Actually, its 650+ now. I have about as much experience in thread volume as anybody on FR. Maybe the most. This definitely qualifies as a high-volume thread. Yours is the only complaint. Therefore, you are DEFINITELY in the minority and your comment becomes more asinine by the minute.

As for the 'waiting a week before signing up', I've been doing the FREE REPUBLIC thing for many years now. Not my fault sensitive people like you read them and cry and try and get me blocked.

The only thing I can see is that you signed up last week. Should I take your word for it that you've been around for years? You sure don't act like it. Most people here grow up real fast. BTW, I have not "tried to get you blocked," though if others have in the past I can't say that surprises me.

Then again, a sense of humor probably wouldn't appeal to such an 'intellectual' like you. He can post this stuff all he wants, I could care less. In fact, I urge more posts like this. Please post more stuff from newscientist.com and slashdot.org. Perhaps I'll start a post of my own on 'UNIX Firewalls' and 'Scientists isolating the genome responsible for lamers like you'. Get a life.

Most people here will tell you that I have a fantastic sense of humor. That's not the problem. The problem is that you are not nearly as witty as you believe you are. You are not really even annoying. Your comment is just lame. It probably comes from hanging out at U Cal Berkely for so long.

I'm doing you a favor here. Take a break, and give it a rest until you get a better feel for what passes for etiquette here.

47 posted on 08/05/2004 12:12:53 PM PDT by presidio9 (Islam is as Islam does)
[ Post Reply | Private Reply | To 36 | View Replies]

To: RightWhale
Well, it'll be more than just a few years. Kepler is due for launch in just a few years, but it's essentially just a Hubble tuned to stare at stars to detect brightness changes. It will be far more sensitive and detect far smaller planets than we are currently capable of picking up, but it will still be inferring the presence of the planets by the changes in the host stars brightness.

We won't have any technology capable of directly observing planets in distant systems until the TPF missions launch, and they're currently not planned until 2014 and 2020 at the earliest. It's nice to know that these questions will be answered in my lifetime, but it's still a frustrating wait for us amateurs :\
48 posted on 08/05/2004 12:19:02 PM PDT by Arthalion
[ Post Reply | Private Reply | To 44 | View Replies]

To: martin gibson

Astronomers have detected a gaseous discharge from the soft core of Uranus.


49 posted on 08/05/2004 12:24:11 PM PDT by steve8714
[ Post Reply | Private Reply | To 25 | View Replies]

To: martin gibson

Sorry, I've been saving that for just such a thread.


50 posted on 08/05/2004 12:26:39 PM PDT by steve8714
[ Post Reply | Private Reply | To 25 | View Replies]

To: Arthalion
It's nice to know that these questions will be answered in my lifetime

I do not expect any positive answers from the Hubble replacement or the earth searchers. I do not expect any positive result for the next million years. If we get a positive result tomorrow, fine, but I don't expect it. I do expect development of natural resources on the moon, on Mars, and in the Asteroid Belt fairly soon. That's far enough for now, IMHO, although they can scout around all the way to the next solar system in the interest of science.

51 posted on 08/05/2004 12:31:50 PM PDT by RightWhale (Withdraw from the 1967 UN Outer Space Treaty and establish property rights)
[ Post Reply | Private Reply | To 48 | View Replies]

To: Legion04
Impossible

I'll by this argument when they can explain where the universe came from - you know, how did we get something from nothing?

jonno

52 posted on 08/05/2004 12:33:12 PM PDT by jonno (We are NOT a democracy - though we are democratic. We ARE a constitutional republic.)
[ Post Reply | Private Reply | To 10 | View Replies]

To: jonno

by = buy
sheesh!


53 posted on 08/05/2004 12:34:47 PM PDT by jonno (We are NOT a democracy - though we are democratic. We ARE a constitutional republic.)
[ Post Reply | Private Reply | To 52 | View Replies]

To: jonno
how did we get something from nothing?

What the something might be is highly speculative. There might be nothing behind the appearance of the world except a lack of symmetry, and even that might be deceptive. We can't know, says Kant.

54 posted on 08/05/2004 12:39:36 PM PDT by RightWhale (Withdraw from the 1967 UN Outer Space Treaty and establish property rights)
[ Post Reply | Private Reply | To 52 | View Replies]

To: presidio9

What you have here is your basic newbie loser who's pretending to post, but is mostly promoting his own web site.


55 posted on 08/05/2004 1:03:09 PM PDT by js1138 (In a minute there is time, for decisions and revisions which a minute will reverse. J Forbes Kerry)
[ Post Reply | Private Reply | To 47 | View Replies]

To: jonno
"I'll by this argument when they can explain where the universe came from"

Don't you know that "first there was nothing and then it exploded."

56 posted on 08/05/2004 1:07:37 PM PDT by jpsb (Nominated 1994 "Worst writer on the net")
[ Post Reply | Private Reply | To 52 | View Replies]

To: Always Right
The universe is just too big for us ever to know, but it is clear that a planet like ours is rare.

But its so big even local rarity doesn't make it rare. I guess its a definition of rare question. Are diamonds rare? Compared to sand yes. But there are diamonds all over the place. Pretty much every woman in the USA has at least a few. Now if I asked "are women in the USA rare" you would say no.

There are estimated to be 10^21 stars. If only one in a million has a earth type planet that is still 10^15 "earths" out there. If only one in a billion has an 'earth' there are still 100 billion "earths".

Each human could have 20 of their own? Is that rare??

57 posted on 08/05/2004 1:11:31 PM PDT by Jack Black
[ Post Reply | Private Reply | To 4 | View Replies]

To: presidio9

Sounds kinda dumb. Let's see, we looked at 120 other solar systems. How many trillions of suns are out there? I'd say we would need to study a few hundred million solar systems to come up with the observation that ours is truely unique.


58 posted on 08/05/2004 1:11:50 PM PDT by taxed2death (A few billion here, a few trillion there...we're all friends right?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: taxed2death

Yes.


59 posted on 08/05/2004 1:15:33 PM PDT by Jack Black
[ Post Reply | Private Reply | To 58 | View Replies]

To: RockinRight
Jupiter has moons almost as big as Earth.

Sorry, but you are way wrong.
Jupiter's largest moon is Ganymede with a diamter of 5,268 km. The diameter of mother Earth is 12,756 km.
60 posted on 08/05/2004 1:19:25 PM PDT by newcats
[ Post Reply | Private Reply | To 3 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-80 ... 101-110 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson