Saturday , October 23 2021

They found planets outside the solar system that have water in the atmosphere


Astronomers at an observatory in the United States found that the giant planet HR8799c, 179 light years from the solar system, has water and no methane in the atmosphere. Current technology does not make it possible to determine the existence of life on its surface, although there are some favorable conditions for the planet.

Scientists at the Keck observatory, located near the inactive Mauna Kea volcano in the state of Hawaii, were announced in The Astronomical Journal that using a study of images of space planets obtained in 2008, and with light analysis technology reflected by that body the atmospheric composition has been determined.

The proportion of gas is very appropriate to keep hope that there is life on the planet, but more factors, such as temperature, enter dance, facts that are still unknown.

The body system that revolves around the star HR8799, which is located in the constellation Pegasus, basically consists of four giant planets, including HR8799c.

Dimitri Mawet, NASA astronomer and co-author of the findings, explained that a combination of adaptive optics is used in telescopes to correct the effects that obscure the images produced by the Earth's atmosphere, along with spectrometers "equipment that analyzes high-resolution" bright composition.

"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 achieved this goal, but we are going in that direction," Mawet stressed.

Source link