No atmosphere found at faraway Earth-sized world, study says

[Buster's Uncle]

No atmosphere found at faraway Earth-sized world, study says
MARCIA DUNN  Mon, March 27, 2023 at 11:21 AM EDT
Associated Press



This image provided by NASA/JPL-Caltech shows an artist's conception of what the surface of the exoplanet TRAPPIST-1f may look like, based on available data about its diameter, mass and distances from the host star. The Webb Space Telescope has found no evidence of an atmosphere at one of the seven rocky, Earth-size worlds orbiting a nearby star. Scientists say that doesn't bode well for the rest of the planets in this solar system, some of which are in the sweet spot for harboring water and, therefore, life. In a study published Monday, March 27, 2023 a NASA-led team reported little if no atmosphere exists at the innermost planet in the Trappist system, 40 light-years away. (NASA/JPL-Caltech via AP) (ASSOCIATED PRESS)


CAPE CANAVERAL, Fla. (AP) — The Webb Space Telescope has found no evidence of an atmosphere at one of the seven rocky, Earth-sized planets orbiting a nearby star.

Scientists said Monday that doesn’t bode well for the rest of the planets in this solar system, some of which are in the sweet spot for harboring water and potentially life.

The NASA-led team reported little if no atmosphere exists at the innermost planet in the Trappist system, 40 light-years away. The researchers used a special technique geared toward a warm planet like this one. Results were published Monday in the journal Nature.

The lack of an atmosphere would mean no water and no protection from cosmic rays, said NASA's Thomas Greene, the lead researcher.

As for the other planets orbiting the small, feeble Trappist star, “I would have been more optimistic about the others” having atmospheres if this one had, Greene said in an email.

Because this innermost planet is bombarded by solar radiation — four times as much as Earth gets from our sun — it's possible that extra energy is why there's no atmosphere, Greene noted.

More observations are planned not only of this planet, but the others in the Trappist system.


https://www.yahoo.com/news/no-atmosphere-found-faraway-earth-152125542.html

[Geo]

Neither does  Mercury have an atmosphere . Just sayin'. And the second planet out of the solar sytem has plenty...