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Planet Atmosphere

All articles tagged with #planet atmosphere

astronomy2 years ago

"Unveiling the Violent Birth of a Planet: Astronomers Witness Atmosphere Being Stripped Away"

Astronomers have observed the Neptune-sized planet AU Microscopii b losing its atmosphere in a highly variable and unpredictable manner due to the intense flaring activity of its young red dwarf star. The planet's hydrogen atmosphere is being torn away in fits and starts, with periods of significant loss followed by minimal loss. This unusual behavior raises questions about the survivability and habitability of planets close to red dwarfs. Further observations are needed to understand the mechanisms behind this atmospheric loss and its implications for exoplanet compositions and potential habitability.

via Inverse|
#astronomy#atmospheric-loss#au-microscopii-b
astronomy2 years ago

"Planet's Atmosphere Vanishes as Astronomers Observe Space Erosion"

Astronomers have observed the Neptune-sized planet AU Microscopii b losing its atmosphere in a highly variable and unpredictable manner due to the intense flaring activity of its young red dwarf star. The planet's hydrogen atmosphere is being torn away in fits and starts, with periods of significant loss followed by minimal loss. This unusual behavior raises questions about the survivability and habitability of planets close to red dwarfs. Further observations are needed to understand the mechanisms behind this atmospheric loss and its implications for exoplanet compositions and habitability.

via Inverse|
#astronomy#atmospheric-loss#au-microscopii-b
astronomy2 years ago

Webb Telescope Examines Enigmatic Sub-Neptune Planet

The James Webb Space Telescope has revealed that the enigmatic planet GJ 1214b is less hot than expected and surprisingly shiny. The planet is bigger than rocky planets like Earth but smaller than any of our system's ice or gas giants. The telescope detected infrared light, which showed that the planet must be highly reflective and able to scatter back about half of the incoming energy. Scientists are now trying to understand what the clouds or hazes in the atmosphere are made of. The planet's atmosphere is not hydrogen-rich, suggesting it's not just a scaled-down Neptune, and there was evidence of water vapor and methane.

via NPR|
#astronomy#gj-1214b#james-webb-space-telescope