Skip to comments.
Possible Earth-like planet discovered
Houston Comical (AP) ^
| June 13, 2005, 2:14PM
Posted on 06/13/2005 12:42:00 PM PDT by The_Victor
click here to read article
Navigation: use the links below to view more comments.
first previous 1-20 ... 61-80, 81-100, 101-120, 121-124 next last
To: m87339
Good point. I will be interested to see what the astro-propeller heads here tell us. :o)
81
posted on
06/13/2005 5:03:10 PM PDT
by
IllumiNaughtyByNature
(If Islam is a religion of peace, they should fire their P.R. guy!)
To: K4Harty
No, it looks right to me. The earth orbits at 93 million miles. If this thing has a longer orbital period than the earth, then it would be orbiting farther out than us if it were in our solar system. While it's true that its sun is less massive than ours (2/3 less massive), that difference in mass is not enough to bring the orbital radius down from about 150 million miles (which is about where Mars is at, with a period of 1.88 years) to 2 million miles.
82
posted on
06/13/2005 5:03:50 PM PDT
by
inquest
(FTAA delenda est)
To: inquest
1.88 years doesn't the original post say days?
83
posted on
06/13/2005 5:05:38 PM PDT
by
IllumiNaughtyByNature
(If Islam is a religion of peace, they should fire their P.R. guy!)
To: theDentist
What is the mathematical formulae for gravity?Gmn = -(8pG/c2)Tmn
ds2 = c2(1-2MG/c2r)dt2 - dr2/(1-2MG/c2r) - r2(dq2+sin2qdf2).
dt = (1-2MG/c2r)1/2dt
dt1/dt2 = (1-2MG/c2r1)1/2/(1-2MG/c2r2)1/2
rc = 2MG/c2
dt1/dt2 = (1-MG/c2R)(1+MG/c2(R+h)) = 1 - (MG/c2)[1/R - 1/(R+h)]
1-dt1/dt2 = (MG/c2)(h/R2)
(n2-n1)/n2 = (MG/c2)(h/R2)
84
posted on
06/13/2005 5:06:28 PM PDT
by
mikrofon
(Anything else? ;)
To: inquest
Here is what is throwing me off.
with an orbit time of just 1.94 Earth days
Is this a revolution on its own axis or around its sun?
85
posted on
06/13/2005 5:06:56 PM PDT
by
IllumiNaughtyByNature
(If Islam is a religion of peace, they should fire their P.R. guy!)
To: The_Victor
A planet that may be Earth-like but too hot for life as we know it Well then, it isn't earth-like, is it?
86
posted on
06/13/2005 5:09:14 PM PDT
by
airborne
(Dear Lord, please be with my family in Iraq. Keep them close to You and safely in Your arms.)
To: Junior
A rocky world that size [Jovian] (an impossibility)I'll bite. Why is this impossible?
87
posted on
06/13/2005 5:09:48 PM PDT
by
null and void
(Oh what a tag lined web we weave...)
To: K4Harty
The 1.88 years is for Mars. 1.94 days is for Gliese, and it does refer to the orbit time around its sun, not its rotation on its axis (which I don't think they're even able to measure at this point).
I brought up Mars to give a comparison to what it would be like if this planet had an orbital period of 1.94 years, so as to show why 1.94 years is unlikely.
88
posted on
06/13/2005 5:10:22 PM PDT
by
inquest
(FTAA delenda est)
To: Huntress
![](http://www.startrek.com/imageuploads/200303/tos-005-dr--mccoy2/320x240.jpg)
"It's hot, Jim."
89
posted on
06/13/2005 5:11:32 PM PDT
by
Redcloak
(We'll raise up our glasses against evil forces singin' "whiskey for my men and beer for my horses!")
To: The_Victor
If Earth-like, then for sure it has well-developed life on it.
Any evolutionist (or would they prefer to be called "abiogenesists?) can tell you that.
90
posted on
06/13/2005 5:13:20 PM PDT
by
cookcounty
(Army Vet, Army Dad.)
To: Dillybird
Looks like global warming affected this planet.... And this, too, is Bush's fault.
91
posted on
06/13/2005 5:13:34 PM PDT
by
Euro-American Scum
(A poverty-stricken middle class must be a disarmed middle class)
To: inquest
92
posted on
06/13/2005 5:15:36 PM PDT
by
IllumiNaughtyByNature
(If Islam is a religion of peace, they should fire their P.R. guy!)
To: Redcloak
93
posted on
06/13/2005 5:19:57 PM PDT
by
Huntress
(Possession really is nine tenths of the law.)
To: cookcounty
Earth-like, in the context of this article, refers to an inner planet, not being a gas giant, but being a "rocky" planet, with a nickel iron core, similar to earth..
Mars is also an earth-like planet, although half the size and 1/10th the gravity, and a CO2 atmosphere..
Likewise, Venus is an earth-like planet, having a nickel iron core equal to earth, being equal in mass and size, but having a dense CO2 atmosphere, and being much too close to the sun, resulting in extremely high planetary temperature..
94
posted on
06/13/2005 5:24:34 PM PDT
by
Drammach
(Freedom; not just a job, it's an adventure..)
To: pax_et_bonum
95
posted on
06/13/2005 5:58:31 PM PDT
by
Eaker
(Festive camaraderie and adrenaline addiction, with weapons and lots of ammo, leads to no good.)
To: Mon
96
posted on
06/13/2005 6:02:00 PM PDT
by
Mon
To: null and void
From what I understand, it's impossible for a rocky planet that big to form. That's why all the really big planets are gas giants.
97
posted on
06/13/2005 6:08:42 PM PDT
by
Junior
(“Even if you are one-in-a-million, there are still 6,000 others just like you.”)
To: Junior
Hmmm. I wonder why? I can understand there being a size limit to a gas giant, (When it gets big enough, it's not a planet, it's a star!) but I don't see a limit to how many rocks you could pile in one place?
98
posted on
06/13/2005 6:12:07 PM PDT
by
null and void
(Oh what a tag lined web we weave...)
To: Eaker
Aluminum.
You said so yourself.
Molten aluminum.
99
posted on
06/13/2005 6:47:38 PM PDT
by
pax_et_bonum
(Three guys walked into a bar. The fourth one ducked.)
To: pax_et_bonum
LOL!!
I think you had one too many Corona beers!!
100
posted on
06/13/2005 6:49:52 PM PDT
by
Eaker
(Festive camaraderie and adrenaline addiction, with weapons and lots of ammo, leads to no good.)
Navigation: use the links below to view more comments.
first previous 1-20 ... 61-80, 81-100, 101-120, 121-124 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.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson