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Dry heat: Hot Jupiters hold surprisingly little water, study finds
Dry heat: Hot Jupiters hold surprisingly little water, study finds

Planetary scientists searching for water on three distant exoplanets have come up dry. Scientists who trained NASA’s Hubble Space Telescope on three “hot Jupiters” have discovered that they have far less water vapor than previously thought. The findings, published in the Astrophysical Journal Letters, show that current theories on how such planets form and migrate may not hold much water -- much like the planets themselves. “This is just a baby step in measuring the composition of other plants outside the solar system,” said study co-author Peter McCullough, a planetary scientist at the Space Telescope Science Institute in Baltimore. “We don’t...

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