Astronomers detect stratosphere on a distant exoplanet

Astronomers detect stratosphere on a distant exoplanet

A team of American astronomers have discovered evidence for existence of a stratosphere on an exoplanet, a planet outside our solar system.

It may be noted here that a stratosphere is a layer of atmosphere on a planet in which temperature rises with increase in altitude.

The scientists detected the stratosphere on WASP-121b, a planet outside our solar system dubbed a “hot Jupiter,” which is 900 light-years away from Earth.

Using the Hubble Space Telescope, the scientists visualized WASP-121b’s stratosphere, an outer layer of the atmosphere that has never been seen in exoplanets before.

Study author Thomas Evans, a research fellow at University of Exeter, “There were theoretical reasons to expect this would be happening in exoplanets’ atmospheres. But these exoplanets are distant, far away, exotic objects. It’s always difficult to predict what their atmospheres will really be like.”

The detection of stratosphere on the WASP-121b exoplanet published in the latest edition of the journal Nature.