dearJulius.com Write For Us

Planetary neighbors can influence habitability, for better or worse

SHARE:

More often than not, the presence of a giant neighbor is detrimental to an exoplanet's habitability. Photo by Siegfried Eggl

By Brooks Hays, UPI

Even after a planet has trapped sufficient amounts of liquid water to sustain life, giant neighbors can significantly alter the planet's habitability, according to a new study.

Rocky planets with an atmosphere and orbit that allow for the existence of liquid water are said to lie in the habitable zone. For an exoplanet, a stable orbit inside the habitable zone doesn't guarantee habitability in perpetuity.

[post_ads]New research suggests neighboring giant planets can have a sizable influence on whether or not an exoplanet remains habitable. More often than not, giant neighbors have a negative impact on an exoplanet's habitability.

Planetary scientists at New York University Abu Dhabi and NASA's Jet Propulsion Laboratory studied 147 extrasolar planetary systems with giant planets. They found giant neighbors can negatively affect an exoplanet's habitability even without altering its orbit.

"While in the majority of investigated systems the presence of the gas 'giants' shrank the habitable zone, they still left sufficient room for habitable Earth-like planets to be there," Nikolaos Georgakarakos, a researcher in the department of physics at NYU Abu Dhabi, said in a news release. "This is an important insight to inform follow-up investigations. It would not make sense to search for Earth 2.0 in a system where a giant planet stirs the orbit of any neighboring terrestrial planet in the habitable zone so much that its climate collapses."

However, a giant neighbor can sometimes help stabilize an exoplanet's orbit, keeping the planet within the habitable zone.

"Under certain conditions, the presence of a giant planet can actually increase the size of the habitable zone, which is the area where your terrestrial planet receives the right amount of light in order to support liquid water on its surface," said Siegfried Eggl, an associate researcher at JPL. "This is quite remarkable since the continuous gravitational pull of giant planets on their terrestrial neighbors mostly spells trouble for habitability."

The scientists published their findings in a new paper published this week in the Astrophysical Journal.

COMMENTS



Note: If you think this story need more information or correction, feel free to comment below your opinion and reaction.
Like & Follow to Stay Updated ...

Name

AI,3,Amazon,1,Apple,5,Emoji,1,Facebook,17,Games,35,Google,7,Instagram,6,Science,205,Security,4,Social Media,24,Tech,242,Technology,1024,Tesla,5,Twitter,4,
ltr
item
Technology - U.S. Daily News: Planetary neighbors can influence habitability, for better or worse
Planetary neighbors can influence habitability, for better or worse
https://1.bp.blogspot.com/-BcGsDfB3JwU/Wsm9zbmoLXI/AAAAAAAAgDE/CQcv3CyvQvIphEp82Aeeietye32F0KwuQCEwYBhgL/s1600/3.jpg
https://1.bp.blogspot.com/-BcGsDfB3JwU/Wsm9zbmoLXI/AAAAAAAAgDE/CQcv3CyvQvIphEp82Aeeietye32F0KwuQCEwYBhgL/s72-c/3.jpg
Technology - U.S. Daily News
https://tech.dailynews.us.com/2018/04/planetary-neighbors-can-influence.html
https://tech.dailynews.us.com/
https://tech.dailynews.us.com/
https://tech.dailynews.us.com/2018/04/planetary-neighbors-can-influence.html
true
4191228214535516123
UTF-8
Loaded All Posts Not found any posts VIEW ALL Read More Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share. STEP 2: Click the link you shared to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy