|Register On Nairaland / LOGIN! / Trending / Recent / New|
Stats: 2,966,641 members, 7,199,881 topics. Date: Sunday, 04 December 2022 at 02:11 PM
Terror Crocodiles With Banana-Sized Teeth Preyed On Dinosaurs 82 Million Yrs Ago / TOI 700 D: Earth-sized Planet Found Relatively Nearby / Venus Jupiter Conjunction 2017: The Planets Will Rise As One On Monday (2) (3) (4)
|7 Earth Sized Planets Discovered Orbiting Nearby Star by Yarduni: 12:12pm On Feb 24, 2017|
Astronomers have found at least seven Earth-sized planets orbiting the same star 40 light-years away, according to a study published Wednesday in the journal Nature. The findings were also announced at a news conference at NASA Headquarters in Washington.
This discovery outside of our solar system is rare because the planets have the winning combination of being similar in size to Earth and being all temperate, meaning they could have water on their surfaces and potentially support life.
"This is the first time that so many planets of this kind are found around the same star," said Michaël Gillon, lead study author and astronomer at the University of Liège in Belgium.
The seven exoplanets were all found in tight formation around an ultracool dwarf star called TRAPPIST-1. Estimates of their mass also indicate that they are rocky planets, rather than being gaseous like Jupiter. Three planets are in the habitable zone of the star, known as TRAPPIST-1e, f and g, and may even have oceans on the surface.
The researchers believe that TRAPPIST-1f in particular is the best candidate for supporting life. It's a bit cooler than Earth, but could be suitable with the right atmosphere and enough greenhouse gases.
If TRAPPIST-1 sounds familiar, that's because these researchers announced the discovery of three initial planets orbiting the same star in May. The new research increased that number to seven planets total.
"I think we've made a crucial step towards finding if there is life out there," said Amaury Triaud, one of the study authors and an astronomer at the University of Cambridge. "I don't think any time before we had the right planets to discover and find out if there was (life). Here, if life managed to thrive and releases gases similar to what we have on Earth, we will know."Life may begin and evolve differently on other planets, so finding the gases that indicate life is key, the researchers added.
"This discovery could be a significant piece in the puzzle of finding habitable environments, places that are conducive to life," said Thomas Zurbuchen, associate administrator of NASA's Science Mission Directorate. "Answering the question 'are we alone?' is a top science priority, and finding so many planets like these for the first time in the habitable zone is a remarkable step forward toward that goal."And as we've learned from studying and discovering exoplanets before, where there is one, there are more, said Sara Seager, professor of planetary science and physics at Massachusetts Institute of Technology. Seager and other researchers are encouraged by the discovery of this system because it improves our chances of finding another habitable planet, like Earth, in the future, by knowing where to look.
|Re: 7 Earth Sized Planets Discovered Orbiting Nearby Star by Yarduni: 12:13pm On Feb 24, 2017|
read more at http://edition.cnn.com/2017/02/22/world/new-exoplanets-discovery-nasa/
this has been breaking for a day now, lalasticlala
|Re: 7 Earth Sized Planets Discovered Orbiting Nearby Star by Blakjewelry(m): 7:30pm On Feb 24, 2017|
|Re: 7 Earth Sized Planets Discovered Orbiting Nearby Star by Feraz(m): 8:28pm On Feb 26, 2017|
How this never got to FP is still a mystery. . .
|Re: 7 Earth Sized Planets Discovered Orbiting Nearby Star by Yarduni: 8:30pm On Mar 03, 2017|
Me self tire
|Re: 7 Earth Sized Planets Discovered Orbiting Nearby Star by Nobody: 9:21pm On Mar 03, 2017|
wow, quite astonishing...
|Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health |
religion celebs tv-movies music-radio literature webmasters programming techmarket
Nairaland - Copyright © 2005 - 2022 Oluwaseun Osewa. All rights reserved. See How To Advertise. 53