Positions of candidate planets of HD 161098 b and HD 161098 c relative to the HZ of the star. — astro-ph.EP Context. The development of refined instruments and techniques for

Saturn’s moon Titan is a prime destination for investigating prebiotic chemistry beyond Earth, particularly at impact crater sites where transient liquid water may have enabled aqueous reactions between organic molecules.

The same gentle wind that would create small ripples on a lake in Earth (right) would make large waves on Saturn’s largest moon Titan (left). In these renderings, the marker

NASA scientist Mary Beth Wilhelm collects soil samples from Chile’s Atacama Desert. Studying ancient life in the driest places on Earth helps us to understand conditions on Mars. — NASA

Dr. Gerald Soffen — NASA The Gerald A. Soffen Memorial Fund is pleased to announce the Spring 2026 Travel Grant application opportunity for undergraduate and graduate students pursuing studies in

NASA’s Mars rover Curiosity acquired this image, showing the polygonal sulfate unit currently being investigated by the rover after leaving the boxwork terrain. Curiosity captured the image using its Left

The element abundances in the silicate Earth can be modelled as the result of accretion of three distinct components with distinct element abundances and isotope composition: A: a strongly volatile

Maps of GEOCLIM simulation (two time slices). “0” maps (left column) are the initial condition, “1” maps (right column) are at the perturbation peak (3 Myr of run time, cf