Monday , April 19 2021

They discover a planet outside the solar system that has water in the atmosphere



Astronomers at an observatory in the United States have discovered that the giant planet HR8799c, 179 light-years away from the solar system, has water and no methane in the atmosphere. Current technology does not allow us to determine the existence of life on its surface, despite some favorable planetary conditions.

Scientists at the Keck Observatory, located near the inactive Mauna Kea volcano in the state of Hawaii, have announced in The Astronomical Journal that through the study of images of exoplanets obtained in 2008 and with the technology of light analysis reflected by that body , the composition of the atmosphere had been determined.

The proportion of gases is propitious to maintain hope that there was life on that planet, but more factors, such as temperature, enter the dance, a fact that is still unknown.

The system of bodies that revolve around the star HR8799, located in the constellation of Pegasus, is composed in principle by four giant planets, among them HR8799c.

Dimitri Mawet, a NASA astronomer and co-author of the discovery, explained that a combination of adaptive optics was used in the telescopes to correct the effect that obscures the images produced by the Earth's atmosphere, along with a high light composition analyzer resolution.

"This type of technology is exactly what we will use in the future to look for signs of life on Earth-like planets. We have not yet reached that goal, but we are going in that direction," Mawet emphasized.


Source link