Artist’s impression of the ten hot Jupiter exoplanets studied by David Sing and his colleagues. From top left to to lower left these planets are WASP-12b, WASP-6b, WASP-31b, WASP-39b, HD 189733b, HAT-P-12b, WASP-17b, WASP-19b, HAT-P-1b and HD 209458b. Credit: ESA/Hubble & NASA
Astronomers have used Hubble and Spitzer Space Telescope to study the atmospheres of 10 hot, Jupiter-sized exoplanets in detail, the largest number of such planets ever studied. The team was able to discover why some of these worlds seem to have less water than expected—a long-standing mystery.
To date, astronomers have discovered nearly 2000 planets orbiting other stars. Some are known as hot Jupiters, hot, gaseous planets with characteristics similar to those of Jupiter...
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