The POLARIS experiment undergoes ground-based testing ahead of integration with the MISSE Flight Facility outside the ISS. Credit: Aegis Aerospace and the U.S. Government An international team is sending microbes

Juice-UVS saw gas and dust elements stretching up to more than 5 million km from 3I/ATLAS’s nucleus on November 25, 2025, when the comet had dimmed considerably relative to November

StructureMASST Editor’s note: As we expand outward from Earth to other worlds we are almost certainly going to encounter things we did not expect to find – things that are

Habitable Zone diagram for the Ross 318 system. The green band indicates the Conservative Habitable Zone boundaries from Kopparapu et al. (2013). The orange star marks Ross 318; the violet

Our target wide binaries are marked with colored circles (primaries) and triangles (secondaries) in the 2MASS (K, J − K) and Gaia (G, BP − RP) CMDs. Blue, orange, green,

Schematics of the MELTYQ coupled magma-atmosphere retrieval. The model is valid for sub-Neptune hosting a thick H2-rich atmosphere with enough surface temperature to melt rocks. The model splits the planet