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

Skip to comments.

100 billion planets, say New Zealand astronomers
Earthsky 'blogs ^ | April 3, 2013 | Deborah Byrd

Posted on 04/03/2013 6:26:05 PM PDT by SunkenCiv

Less than two decades ago, there were exactly zero known planets orbiting sunlike stars in our Milky Way galaxy. Astronomers back then were engaged in a powerful struggle to seek out exoplanets, and they succeeded, so that today there are 861 confirmed exoplanets, according to exoplanet.eu on March 25, 2013... astronomers at The University of Auckland in New Zealand announced their new method for finding exoplanets. They say they anticipate 100 billion planets similar to our Earth, orbiting stars in the Milky Way...

Lead author of the New Zealand planet search -- Dr. Phil Yock from the University of Auckland’s Department of Physics -- said his team’s strategy is to use a gravitational microlensing technique. Yock said his team will use a combination of data from microlensing and NASA’s Kepler space telescope.

The Kepler space telescope, by the way, has single-handedly found 105 exoplanets and an astounding 2,740 planet candidates orbiting 2,036 stars (as of January 7, 2013)...

Kepler finds Earth-sized planets that are quite close to parent stars, and it estimates that there are 17 billion such planets in the Milky Way. These planets are generally hotter than Earth, although some could be of a similar temperature (and therefore habitable) if they’re orbiting a cool star called a red dwarf...

Microlensing, used by the New Zealand astronomers, is a third technique for finding planets orbiting distant suns. It measures the deflection of light from a distant star that passes through a planetary system en route to Earth. This effect was predicted by Einstein in 1936 and has been used successfully not only to find exoplanets but also to study distant objects such as quasars...

(Excerpt) Read more at earthsky.org ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; newzealand; science; xplanets
Navigation: use the links below to view more comments.
first 1-5051 next last
Image via NASA

1 posted on 04/03/2013 6:26:05 PM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
Google news searches: exoplanet · exosolar · extrasolar ·

2 posted on 04/03/2013 6:26:32 PM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

All that extra land to be had. :-)


3 posted on 04/03/2013 6:28:54 PM PDT by Red Steel
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

4 posted on 04/03/2013 6:30:43 PM PDT by dfwgator
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

I don’t think most people understand the gravity of this situation.


5 posted on 04/03/2013 6:32:34 PM PDT by Ken H
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

And that’s just in our galaxy.


6 posted on 04/03/2013 6:32:36 PM PDT by SkyDancer (Live your life in such a way that the Westboro church will want to picket your funeral.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: dfwgator

Only 100 billion? Hell we’ve got a 13 trillion deficit. And I’m supposed to be impressed by 100 billion?


7 posted on 04/03/2013 6:33:12 PM PDT by saleman
[ Post Reply | Private Reply | To 4 | View Replies]

To: SunkenCiv

Dibs!


8 posted on 04/03/2013 6:33:48 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: cripplecreek

pig


9 posted on 04/03/2013 6:34:43 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 8 | View Replies]

To: SunkenCiv; a fool in paradise; Slings and Arrows

10 posted on 04/03/2013 6:34:51 PM PDT by Revolting cat! (Bad things are wrong! Ice cream is delicious!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

I have no doubt there are many, many trillions of planets orbiting star systems all over the universe..I also have no doubt a good percentage of those will harbor some type of life.


11 posted on 04/03/2013 6:35:00 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

And they are all clean out of reach


12 posted on 04/03/2013 6:36:21 PM PDT by The Louiswu (Torpedo the Constitution and full speed ahead!!!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Anyone know what the most realistic Drake equation predicts?


13 posted on 04/03/2013 6:37:32 PM PDT by MattinNJ (It's over Johnny. The America you knew is gone. Denial serves no purpose.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred
I prefer planet baron.

Image Hosted by ImageShack.us
14 posted on 04/03/2013 6:38:13 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
[ Post Reply | Private Reply | To 9 | View Replies]

To: saleman
Only 100 billion? Hell we’ve got a 13 trillion deficit. And I’m supposed to be impressed by 100 billion?

Uh, that number is for our galaxy alone....

There are hundreds of billions, likely trillions of galaxies in the universe...

lol...

15 posted on 04/03/2013 6:39:11 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 7 | View Replies]

To: cripplecreek

16 posted on 04/03/2013 6:39:16 PM PDT by Revolting cat! (Bad things are wrong! Ice cream is delicious!)
[ Post Reply | Private Reply | To 14 | View Replies]

To: cripplecreek

I got no beef with Baron.


17 posted on 04/03/2013 6:39:18 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 14 | View Replies]

To: SunkenCiv

We now have some key data to plug into the Drake Equation.

N = R* • fp • ne • fl • fi • fc • L

http://www.seti.org/drakeequation


18 posted on 04/03/2013 6:40:11 PM PDT by USFRIENDINVICTORIA
[ Post Reply | Private Reply | To 1 | View Replies]

To: The Louiswu

19 posted on 04/03/2013 6:45:16 PM PDT by mikrofon (G-D's Quarantine)
[ Post Reply | Private Reply | To 12 | View Replies]

To: SunkenCiv

And the US military shall police every single one


20 posted on 04/03/2013 6:45:48 PM PDT by ReaganGeneration2
[ Post Reply | Private Reply | To 1 | View Replies]

To: USFRIENDINVICTORIA

Tough equation, when you know hardly any of the variables. Anyone got even a glimpse of the number?


21 posted on 04/03/2013 6:45:54 PM PDT by catfish1957 (My dream for hope and change is to see the punk POTUS in prison for treason)
[ Post Reply | Private Reply | To 18 | View Replies]

To: SunkenCiv
"...some could be of a similar temperature (and therefore habitable) if they’re orbiting a cool star called a red dwarf."

"Habitable" only comes when there is oxygen in the atmosphere, lots of clean water, temperatures that remain as stable as that of this good earth, and plants capable of sustaining animal life, as well as humans.

My bet - there is no other place like this place.

22 posted on 04/03/2013 6:48:07 PM PDT by Ron C.
[ Post Reply | Private Reply | To 1 | View Replies]

To: USFRIENDINVICTORIA

That is an obviously flawed equation being there is no variable for comet seeding.


23 posted on 04/03/2013 6:49:09 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 18 | View Replies]

To: SunkenCiv

I remember Carl Sagan said the same thing in 1980’s “Cosmos” as he demonstrated the Frank Drake Equation that was developed at Green Bank in the 1950’s. BTW, I did a little research and there was a time in 1942 when an astronomer thought he might have discovered an extra-solar planet by seeing how something was tugging at the star he was observing.


24 posted on 04/03/2013 6:49:29 PM PDT by Nowhere Man (Whitey, I miss you so much. Take care, pretty girl. (4-15-2001 - 10-12-2012))
[ Post Reply | Private Reply | To 1 | View Replies]

To: dragnet2

Our galaxy is estimated to have between 200 million and 400 million stars. I’d say that the NZ astronomers are giving a pretty conservative estimate considering how many we’ve found in a fairly limited search area.


25 posted on 04/03/2013 6:51:27 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
[ Post Reply | Private Reply | To 15 | View Replies]

To: The Louiswu

100 billion planets...and none of them has chocolate.


26 posted on 04/03/2013 6:54:06 PM PDT by Verginius Rufus
[ Post Reply | Private Reply | To 12 | View Replies]

To: Verginius Rufus

What about Mars bars?


27 posted on 04/03/2013 6:59:15 PM PDT by TaMoDee ( Lassez les bons temps rouler dans les 2013! Geaux, Pack, Geaux!)
[ Post Reply | Private Reply | To 26 | View Replies]

To: SunkenCiv

A hundred billion planets in our galaxy and we are stuck here on the one with Zero.


28 posted on 04/03/2013 7:00:40 PM PDT by Jyotishi (Seeking the truth, a fact at a time.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: The Louiswu
And they are all clean out of reach

Not very many years ago, they said the exact same thing about the Moon, Mars and sending spacecraft outside of our solar system...In fact they said that about crossing the oceans not too many years ago.

Not long ago, they also imprisoned people who dared suggest earth was not the center of the universe...

29 posted on 04/03/2013 7:01:17 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 12 | View Replies]

To: dragnet2

“I also have no doubt a good percentage of those will harbor some type of life.”
________________________________________________

I don’t know that a good percentage have life, but I imagine
there is life, other then on Earth, somewhere the universe.
I do not, however, believe that we are, or have been visited
by ET. He has to be just too far away.


30 posted on 04/03/2013 7:06:13 PM PDT by AlexW
[ Post Reply | Private Reply | To 11 | View Replies]

To: Verginius Rufus

They also don’t have and will ever have Moslems

They can’t pray towards Mecca when it’s 500+ light years away


31 posted on 04/03/2013 7:06:46 PM PDT by qam1 (There's been a huge party. All plates and the bottles are empty, all that's left is the bill to pay)
[ Post Reply | Private Reply | To 26 | View Replies]

To: catfish1957

Somewhere between Zero and a billion, I’d guess.


32 posted on 04/03/2013 7:13:13 PM PDT by USFRIENDINVICTORIA
[ Post Reply | Private Reply | To 21 | View Replies]

To: bigheadfred

That’s true — but, you could say that comment seeding is a (possible) causal variable embedded in “fi”. Or, you could just guess.

fi = The fraction of life bearing planets on which intelligent life emerges.


33 posted on 04/03/2013 7:15:51 PM PDT by USFRIENDINVICTORIA
[ Post Reply | Private Reply | To 23 | View Replies]

To: AlexW

We don’t know. The earth is 4.5 billion or so years old...We have no idea what or who might have visited here long before man’s short time on this planet.

We all have our beliefs or opinions and on that one, I really have no hard opinion either way. Maybe, or maybe not would be my opinion regarding being visited.


34 posted on 04/03/2013 7:19:10 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 30 | View Replies]

To: MattinNJ
Anyone know what the most realistic Drake equation predicts?

"Obviously, our estimates of the number of intelligent species currently residing in our galaxy with technological capacity comparable to or greater than our own varies wildly. That is simply because even our best guesses for each of the pieces in Drake's equation are still just guesses. A number larger than one indicates the number of civilizations currently estimated to exist in the galaxy among its hundreds of billions of stars. The most optimistic number we came up with today is 1000, which is still only 1 per hundred million stars - the proverbial needle in a haystack. The pessimistic numbers (those less than one) suggest that on average, there is no such civilization present in the galaxy. We qualify as one, so this implies that our civilization is a rare and transient phenomenon." From Here.

Drake Equation Calculator Here. I did various values and got answers from below 1 to 80.

35 posted on 04/03/2013 7:20:07 PM PDT by Art in Idaho (Conservatism is the only Hope for Western Civilization.)
[ Post Reply | Private Reply | To 13 | View Replies]

To: cripplecreek

I would agree with that.


36 posted on 04/03/2013 7:24:44 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 25 | View Replies]

To: dragnet2

“The earth is 4.5 billion or so years old...”

You’ve really gone and done it now!


37 posted on 04/03/2013 7:33:01 PM PDT by OKRA2012
[ Post Reply | Private Reply | To 34 | View Replies]

To: OKRA2012

lol...


38 posted on 04/03/2013 7:34:22 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
[ Post Reply | Private Reply | To 37 | View Replies]

To: Art in Idaho

Thanks. As Sagan said “Either we are alone or we are not. Either way is amazing” or something to that effect.


39 posted on 04/03/2013 7:37:20 PM PDT by MattinNJ (It's over Johnny. The America you knew is gone. Denial serves no purpose.)
[ Post Reply | Private Reply | To 35 | View Replies]

To: USFRIENDINVICTORIA

And I can see your point being that the formation of any (solar) system probably follows a pattern vis-à-vis Oort clouds and the like.


40 posted on 04/03/2013 7:42:16 PM PDT by bigheadfred
[ Post Reply | Private Reply | To 33 | View Replies]

To: SunkenCiv

It should be noted that hot a single one of the exoplanets discovered is even close to being habitable.


41 posted on 04/03/2013 7:51:26 PM PDT by Blood of Tyrants (The founding fathers didn't form this country by compromising.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

It should be noted that not a single one of the exoplanets discovered is even close to being habitable.


42 posted on 04/03/2013 7:53:04 PM PDT by Blood of Tyrants (The founding fathers didn't form this country by compromising.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Nowhere Man

Mr. Sagan didn’t believe in God back then.
I’ll guarantee you, he does NOW!


43 posted on 04/03/2013 8:05:47 PM PDT by Tucker39
[ Post Reply | Private Reply | To 24 | View Replies]

To: OKRA2012

Oh, No!!~!

You know what I really miss. I miss those Sat. night creationist vs. evolutionist threads. Haven’t seen any lately. I think they might have killed each other off. You know, Mutually Assured Destruction. MAD for short. Yep, I’d check in every now and then, throw out a comment or 2. And watch the fireworks. Great with a glass of good Scotch.

(Sigh..) I miss the good ‘ole days....


44 posted on 04/03/2013 8:08:29 PM PDT by saleman
[ Post Reply | Private Reply | To 37 | View Replies]

To: USFRIENDINVICTORIA

comment s/b comet (do not ever rely on spell check)


45 posted on 04/03/2013 10:32:38 PM PDT by USFRIENDINVICTORIA
[ Post Reply | Private Reply | To 33 | View Replies]

To: The Louiswu
And they are all clean out of reach

For now...

46 posted on 04/03/2013 10:33:17 PM PDT by Windflier (To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Blood of Tyrants

They said that about Florida once.


47 posted on 04/03/2013 10:36:11 PM PDT by USFRIENDINVICTORIA
[ Post Reply | Private Reply | To 42 | View Replies]

To: Ron C.
"...My bet - there is no other place like this place..."

We are alone...

48 posted on 04/03/2013 11:40:38 PM PDT by Does so (Progressives Don't Know the Meaning of INFRINGED...)
[ Post Reply | Private Reply | To 22 | View Replies]

To: Revolting cat!

Why do we keep looking? If liberals want a colder planet, just send them all to Pluto one way.


49 posted on 04/04/2013 1:09:19 PM PDT by a fool in paradise (America 2013 - STUCK ON STUPID)
[ Post Reply | Private Reply | To 10 | View Replies]

To: SunkenCiv

I suppose it is possible that there may be some form of simple life on a few of those planets, but my bet is, none of them harbor any kind of advanced, intelligent life (i.e. life capable of even simple, basic technology).


50 posted on 04/04/2013 1:20:25 PM PDT by mtg
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051 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