Extreme Radiation Could Strip Exoplanets of their Atmospheres

If orbiting just 4 million miles from your fiery host star wasn’t bad enough, things might have just gotten even worse. New research shows that stars emitting high levels of ultraviolet (UV) radiation could strip the atmospheres of their ultra-close exoplanets. While observing gas giants that orbit exceptionally close to their host stars, astronomers found that those bombarded with radiation were losing helium from their atmospheres. These results, which were published in multiple studies

Helium exoplanet inflated like a balloon, research shows

Astronomers have discovered a distant planet with an abundance of helium in its atmosphere, which has swollen to resemble an inflated balloon.

Thu 6 Dec 18 from Phys.org

Helium exoplanet inflated like a balloon, research shows, Sat 8 Dec 18 from Astrobiology Magazine

Helium exoplanet inflates like a balloon

Helium was predicted to be one of the most common elements of exoplanets, but was only recently observed for the first time.

Mon 10 Dec 18 from ZME Science

This Fluffy Alien World Farts Helium

Sun 9 Dec 18 from Livescience

A Helium Tail Trails This Fluffy Alien Planet, Thu 6 Dec 18 from SPACE.com

Distant planet with a helium-filled atmosphere has swollen into the shape of a BALLOON

The planet is 124 light years from Earth and was discovered by an international team of researchers led by academics at the University of Geneva in Switzerland.

Thu 6 Dec 18 from Daily Mail

The exoplanet with a tail: Researchers discover giant world with helium gas trailing behind it

Researchers used the CARMENES instrument on the 3.5-meter telescope of the Calar Alto Observatory in Spain to identify five exoplanets that appear to have helium envelopes.

Thu 6 Dec 18 from Daily Mail

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