Astrobiology122- Page

0.5 M (NH4)2SO4. Light yellow numbered items and arrows refer to the following biological components: 1, undulating outer membrane; 2, periplasmic space; 3, inner membrane; 4, nucleoid; 5, cytoplasm; 6,

“To bridge dilution between environments, we specify mobile “holding pens” (green-rust/iron flocs, silica mats, pumice rafts, and sea-surface microlayer/foam) that concentrate, shuttle, and release prebiotic cargo into shoreline pools.” —

ONC-T images of (a) WASP-189 (image hyb2 onc 20240918 073620 tif l2b) and (b) MASCARA-1 (image hyb2 onc 20241130 093826 tif l2b) captured during transit events 10 and 12, respectively.

Graphical abstract — Journal of the American Chemical Society The P–O–P moiety plays a central role in inorganic and biological systems and is considered to be a critical precursor to

A representative sample of nine historical events from Table 5. The top row shows nearby ( 4 kpc) events for which a combination of all three mass-distance relations (θE, πE,

The JWST Users Committee (JSTUC) will hold their second Community Forum on Monday, October 27, 2025 at 12:00 PM (Eastern Time) to continue discussions with the JWST user community (following

Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on

Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on

NASA’s Phoenix mission in 2008 was the first to excavate down and capture photos of ice, pictured here, in the Mars equivalent of the Arctic Circle. Credit: NASA/JPL-Caltech/University of Arizona/Texas