Faint Signatures of Water in Exoplanet's Atmosphere (Artist's Illustration)
NASA scientists found faint signatures of water in the atmospheres of five distant planets orbiting three different stars. All five planets appear to be hazy.
Illustration: NASA Goddard Space Flight Center;
Science: NASA, ESA, A. Mandell (Goddard Space Flight Center), and D. Deming (University of Maryland, College Park)