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Home / Science / NASA Unveils Secrets of the & # 39; Hot Jupiter & # 39; Exoplanets

NASA Unveils Secrets of the & # 39; Hot Jupiter & # 39; Exoplanets



A new study revealed a surprising mystery about exoplanets known as "hot Jupiter" – the dark sides of these planets have "surprisingly even" temperatures, suggesting that the clouds could be made up of minerals and rocks.

12 exoplanets were found to have temperatures on the night-sides of these planets all around 800 degrees Celsius, suggesting that some sort of natural energy transfer takes place.

Atmospheric circulation models predicted that nighttime temperatures should vary much more than they do, "Dylan Keating, lead author of the study, said in an explanation," This is really surprising, as the planets we studied are hostile be irradiated differently strong and the daytime temperatures between them by almost 1

700 ° C vary. [3092 F]. "

  Schematic representation of clouds on the night side of a hot air Jupiter exoplanet, the underlying atmosphere is over 800 ° C hot enough to evaporate rocks, atmospheric movements from the deep atmosphere or from the The hotter edge of the day brings the rock vapor into cooler regions, where it condenses into clouds and possibly rains into the underlying atmosphere.These clouds of condensed rock block the heat radiation and make the night side of the planet appear relatively cool from space.Credit: McGill University 19659005] Cloudscape on the night side of a hot Jupiter exoplanet, the underlying atmosphere is hot enough to evaporate rocks above 800 ° C. Atmospheric movements from the deep atmosphere or from the hotter day edge bring the rock vapor into cooler regions where he condensed into clouds and possibly in the darunte These clouds of condensed rock block the heat radiation and make the night side of the planet appear relatively cool from space. Credit: McGill University
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<p><strong>  ALTE MARS WAS WARM AND RAIN ENOUGH TO SUPPORT LIFE, SAYS STUDY </strong> Due to the distance from the Sun, the temperature measurements of Jupiter vary more in altitude. In the clouds, the average temperature is about minus 234 degrees Fahrenheit, while the temperature near the center of the planet is about 43,000 degrees Fahrenheit according to NASA data. </p><div><script async src=

Keating and the other researchers used data from the NASA's Spitzer Telescope and the Hubble Space Telescope.

The researchers believe it is possible that "nighttime clouds" are the cause of similar temperatures.

"This result can be explained when most hot Jupiter have night-time clouds that are optically dense for outgoing longwave radiation and therefore radiate at cloud temperature and increasingly dissipate for planets that receive a larger incident flux," it says the abstract of the study. "Phase observations in a broader wavelength range are critical to the extent of cloud cover and cloud composition on hot Jupiter nightsides."

According to NASA, more than 4,000 exoplanets have been discovered so far. There are another 3,000 "candidates" who need further observation to see if they are real.

The study was published in the journal Nature Astronomy.

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