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Exozodiacal dust, depicted in this artist’s illustration as a glowing white haze above the horizon of a hypothetical habitable planet orbiting another star, was found to exist in such large

Energy levels of 2,5-CT and 2,4-CT relative to thiophenol. The geometries and energies were derived at CAM-B3LYP/cc-pCV5Z level of theory. — astro-ph.GA Molecules harbouring sulfur are thought to have played

Distribution of Pyl in archaea. (A) Proposed mechanism for Pyl biosynthesis (blue), and incorporation (orange) into elongating polypeptides by a Pyl-tRNAPyl charged by its cognate aminoacyl tRNA synthetase (PylS). (B)

Examples of mapped large drainage systems on Mars. The dotted white outlines represent drainage boundaries encompassing valley networks (black), lakes (gradient blue), and outlet canyons (yellow) formed by lake breaches.