Ice sheet topography computed by GRISLI (step RGRGRG). For this particular simulation, the ice sheet reaches the ocean and could potentially produce icebergs. The altitude here includes the isostasy that

JWST NIRSpec PRISM transmission spectra compared with modeled atmospheric scenarios. The x-axis shows wavelengths in microns, while the y-axis shows the transit depth in parts per million. Each of the

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