Posted by
Message
Trumansfangs
Missouri Fan
Town & Country
Member since Sep 2018
1769 posts

As many as six billion Earth-like planets in our galaxy, according to new estimates



There may be as many as one Earth-like planet for every five Sun-like stars in the Milky way Galaxy, according to new estimates by University of British Columbia astronomers using data from NASA's Kepler mission.

To be considered Earth-like, a planet must be rocky, roughly Earth-sized and orbiting Sun-like (G-type) stars. It also has to orbit in the habitable zones of its star -- the range of distances from a star in which a rocky planet could host liquid water, and potentially life, on its surface.

"My calculations place an upper limit of 0.18 Earth-like planets per G-type star," says UBC researcher Michelle Kunimoto, co-author of the new study in The Astronomical Journal. "Estimating how common different kinds of planets are around different stars can provide important constraints on planet formation and evolution theories, and help optimize future missions dedicated to finding exoplanets."

According to UBC astronomer Jaymie Matthews: "Our Milky Way has as many as 400 billion stars, with seven per cent of them being G-type. That means less than six billion stars may have Earth-like planets in our Galaxy."



Always interesting : Science Daily


pvilleguru
Atlanta United Fan
Member since Jun 2009
55317 posts
 Online 

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
Sounds about right.


Replies (0)
Replies (0)
10
Kentucker
Kentucky Fan
Cincinnati, KY
Member since Apr 2013
15487 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
quote:

Our Milky Way has as many as 400 billion stars


It’s bewildering that we can’t get a more precise estimate for the number of stars in our galaxy. Estimates range from 100-600 billion stars. Even the Milky Way’s size is uncertain. Most popular science estimates state that it’s 100,000 light years in diameter. However, many astronomers say it’s closer to 160,000 light years across.

Wouldn’t it be wonderful if we could see the Milky Way from Andromeda? Maybe there’s a Kentucker equivalent on a planet in that galaxy wishing the same thing about Andromeda. Wish we had intergalactic social media so we could exchange photos.


Replies (0)
Replies (0)
30
Wtodd
Missouri Fan
Tampa, FL
Member since Oct 2013
52373 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
Good....there's plenty of places to ship off the liberal pieces of shit


SR SponsorSR Fan
USA
Member since 2001
Thank you for supporting our sponsors
Advertisement
Arksulli
Arkansas Fan
Fayetteville
Member since Aug 2014
19094 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
quote:

Good....there's plenty of places to ship off the liberal pieces of shit




FFS take this to the Poliboard. What is your major malfunction bringing this up in a science thread?


Replies (0)
Replies (0)
31
Arksulli
Arkansas Fan
Fayetteville
Member since Aug 2014
19094 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
There are some conflicting theories about this. One of which is that our solar system appears to be very rare.

By which I mean to folks great surprise most systems appear to have planets that are all roughly the same size. Meaning if you have one Earth size planet you probably have another 5 or so. If you have one gas giant the rest are probably gas giants as well.

Now this might well be proven to be observational error, we are, after all, very new at this, but it does raise the possibility that our solar system is laid in an unusual fashion, which means finding a classic "Terran" system might be rare.

At the moment we are like a kid dipping his toe in the ocean. We can see the ocean, well, part of it, but there is so much to see and understand that we haven't even begun to understand yet.


Replies (0)
Replies (0)
00
GurleyGirl
Georgia Fan
Georgia
Member since Nov 2015
10669 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
These estimates seem reasonable and it speaks to the vastness and relative infancy of the universe that apparently there are no civilizations advanced enough to span a seemingly infinite void.


Commander Data
Alabama Fan
Titletown, USA
Member since Dec 2016
6736 posts

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
Are the other ones flat like ours?


Replies (0)
Replies (0)
40
awestruck
Auburn Fan
Member since Jan 2015
5844 posts
 Online 

re: As many as six billion Earth-like planets in our galaxy, according to new estimates
(deleted)

eta. . . is spanning an infinite void even possible?

This post was edited on 7/3 at 6:11 am


Replies (0)
Replies (0)
00
first pageprev pagePage 1 of 1next pagelast page
refresh

Back to top

logoFollow SECRant for SEC Football News
Follow us on Twitter and Facebook to get the latest updates on SEC Football and Recruiting.

FacebookTwitter