Day in Review: SPHEREx’s First All-Sky Map | Titan May Not Have Global Ocean | Perseverance Ready to Roll

The telescope will help scientists answer big-picture questions about everything from water deposits in the Milky Way to what... 

Missions __ News __ Galleries __ Events December 18, 2025 Stars and Galaxies NASA's SPHEREx Observatory Completes First Cosmic Map Like No Other The telescope will help scientists answer big-picture questions about everything from water deposits in the Milky Way to what happened in the first second after the big bang. Full Story, Images, and Videos Solar System NASA Study Suggests Saturn's Moon Titan May Not Have Global Ocean Reanalysis of data from NASA's Cassini mission has revealed Saturn's moon may instead have layers of slush with isolated pockets of liquid water. Read More Mars NASA's Perseverance Mars Rover Ready to Roll for Miles in Years Ahead The rover has been acing a long-term series of durability tests, making the most of its enhanced navigation capabilities, and ferreting out new findings about Mars' geologic past. Read More

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