H2 abundance constraints for TRAPPIST-1 e from HST and JWST as a function of surface pressure. Posterior distribution showcasing the improvement on constraints on possible H2-dominated atmospheres on TRAPPIST-1 e
H2 abundance constraints for TRAPPIST-1 e from HST and JWST as a function of surface pressure. Posterior distribution showcasing the improvement on constraints on possible H2-dominated atmospheres on TRAPPIST-1 e
The Transiting Exoplanet Survey Satellite observed the interstellar comet 3I/ATLAS in 2025 May–June. Using this extensive data set, we coadded more than 9000 images, in two groups, to look for
Cumulative flare frequency distribution for M dwarfs plotted as a function of flare energy across spectral types. The red dashed line shows the power-law fit (see Section 3.4). For the
April 15, 2003 Prelaunch at Kennedy Space Center In the Payload Hazardous Servicing Facility, the lander petals of the Mars Exploration Rover 2 (MER-2) have been reopened and its solar
Schematic of the analytical techniques used in this study. There were two model solutions, the organic mixture in pure water (light blue), which was analyzed by ESI-MS and HNMR, and
Navigating Uncertainty in Astrobiology Virtual Panel Series Join us for the second event in a two-part virtual panel series featuring speakers who will share their experiences navigating astrobiology careers in
Editor’s note: A message from JPL Director Dave Gallagher announced a JPL layoff of 550 people. “In order to best position JPL going forward, we are taking steps to restructure
A possible architecture for HWO under study by the HWO Technology Maturation Project Office. This design has an 8-meter inscribed diameter filled by 37 hexagonal segments — larger than JWST.
Distance versus time distributions for the 49 encounters with β Pic that have an empirical probability of at least 95% of occurring within 2 pc. The coloured points indicate the
Venus, Earth, and Mars — NASA Venus, Earth, and Mars exhibit a wide range of interactions between their deep interiors, surfaces, lower and upper atmospheres, and the Sun, with commensurate






