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