Scientists: 'Super-Earths' in Other Solar Systems May Support Life

Image: Scientists: 'Super-Earths' in Other Solar Systems May Support Life Artist's depiction of Kepler-62e is shown in this NASA handout. (JPL-Caltech/Handout via Reuters}

Saturday, 14 Dec 2013 01:35 PM

By Sandy Fitzgerald

  Comment  |
   Contact Us  |
|  A   A  
  Copy Shortlink
Other solar systems contain a new class of planets, dubbed "super-Earths" that can maintain liquid water on their surfaces, making them potentially habitable, scientists say.

Observations made through space- and ground-based telescopes in the past few years have discovered the planets, described as worlds that are anywhere two to 10 times the Earth's mass and up to two times larger than its radius, orbit Sun-like stars outside our solar system, according to findings reported at NASA-sponsored Astrobiology Magazine.

In our own solar system, the Earth is the only planet at the optimum distance from the sun to sustain life. But in other systems, some planets orbit around M-class stars, which are cooler and less bright than the Sun. This means they can possibly maintain water and sustain life, the magazine reports.

The M-class stars are abundant in the Sun's part of the universe, the findings report, meaning there may be super-Earths in "our solar neighborhood."

The first super-Earths were discovered in 1992, and further discoveries have come in part through the NASA Kepler space telescope, which spent nearly four years hunting for planets in the Sygnus constellation. Its mission ended this year, but still has provided a great deal of data about super-Earths.

Most of the ground discoveries are done through instruments in La Silla, Chile and Mauna Kea, Hawaii.

Kepler's mission is on hold because two of its four reaction wheels failed, Astrobiology reports

Meanwhile, a successor mission, the Transiting Exoplanet Survey Satellite (TESS) will have both advantages and disadvantages while searching for super-Earths, said Nader Haghighipour, a member of the NASA Astrobiology Institute and the University of Hawaii-Manoa's Institute for Astronomy.

"Because TESS is going to cover the entire sky, as opposed to Kepler that focused on only one portion of the sky, it may be able to find more [exoplanets]," he said. "As far as accuracy and precision, because it’s not going to stay on one region of the sky for as long as the Kepler did, the accuracy may not be as high as that of the Kepler."

Another group, led by the University of Göttingen in Germany, found that there may be many of the super-Earths. One M-star alone was discovered to have six or seven planets, including three to five super-Earths that may support life.

But the researchers said the planets can have very short years — as little as  20 to 50 days — in which one side may almost perpetually face the host star, but life could still survive on them.

"It's the most reliable detection [of potentially habitable exoplanets] that we’ve had," Haghighipour said.

Related Stories:

© 2014 Newsmax. All rights reserved.

  Comment  |
   Contact Us  |
  Copy Shortlink
Around the Web
Join the Newsmax Community
>> Register to share your comments with the community.
>> Login if you are already a member.
blog comments powered by Disqus
Retype Email:
Zip Code:
Hot Topics
Follow Newsmax
Like us
on Facebook
Follow us
on Twitter
Add us
on Google Plus
Around the Web
You May Also Like

Cool Heels on Climate Change Actions, Skeptics Say

Friday, 18 Apr 2014 15:08 PM

A report from the Intergovernmental Panel on Climate Change has been seized upon by the Obama administration and environ . . .

New Technique to Grow Stem Cells Could Lead to Cloning

Friday, 18 Apr 2014 10:45 AM

Experts warned that a new technique allowing stem cells to be grown from the DNA of human adult males could lead to huma . . .

Earthlike Planet: Scientists Discover New Celestial Body, Kepler-186f

Friday, 18 Apr 2014 07:08 AM

NASA scientists have discovered an earthlike planet about 500 lightyears away in the Cygnus constellation and they’ve na . . .

Newsmax, Moneynews, and Independent. American. are registered trademarks of Newsmax Media, Inc. Newsmax TV, NewsmaxWorld, NewsmaxHealth, are trademarks of Newsmax Media, Inc.

America's News Page
©  Newsmax Media, Inc.
All Rights Reserved