Astrobiology30- Page

(a) The Earth’s extensive and H-rich exosphere scatters solar Lyman-α photons, producing the geocoronal airglow; (b) the geometry of Earth’s illumination by the Sun (adapted from Kameda et al. 2017).

(a) Galileo Solid State Imaging (SSI) false color data of Europa’s leading hemisphere and Tara Regio (credit: NASA, JPL/Caltech, PIA01295). (b) Illustration of chaos on Europa (credit: NASA, GSFC, PIA00840),

Left: Eccentricity posterior generated by fitting the first nine chronological transits of TOI 555.01. Right: Eccentricity posterior generated by fitting the first nine chronological long-cadence transits of KOI 247.01. —

GMM fits to the unbinned radius data, along with corresponding histograms, are presented for the entire low-mass star sample and for M, K, and G stellar types. The Super-Earth and

ℓ1 periodogram for the stars HD 10700 (left), HD 102365 (centre), and HD 304636 (right). The ten strongest peaks periods are identified in the image; the associated FAP is listed

RAIR spectra (top) and difference spectra (bottom) for irradiation of the (a) CO:PHP mixed ice and (b) CO/PHP layered ice, focusing on the region around the CO stretching mode. The

The average total power of individual airport radar systems, averaged over one-hour intervals as seen from Barnard’s Star. — Royal Astronomical Society Radar systems used by civilian airports and military