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Study Finds Europa’s Seafloor Likely Inactive, Undercutting Hopes for Present-Day Life

The peer-reviewed modeling points to too little seafloor energy today, a forecast to be tested by Europa Clipper plus JUICE in the early 2030s.

Lab Radiation Tests Complicate Ocean Origin for Enceladus Organics

Sharp Hubble Images Confirm 3I/ATLAS as Comet; Juno Intercept Study Advances

NOAA Issues G2 Geomagnetic Storm Watch as AR 4168 CME Nears Earth

Parker Solar Probe Detects Magnetic Reconnection Fueling Extreme Proton Acceleration in Nascent Solar Wind