Guardian: In 2011 the National Reconnaissance Office offered NASA an unused spy satellite currently in storage. The satellite’s telescope, like the Hubble Space Telescope, has a 2.4-m-diameter mirror. However, it has a much wider field of view because it was originally designed to look at Earth, not into space. This wide field of view makes it perfect for wide-field surveys of galaxies, so NASA proposed the Wide-Field Infrared Survey Telescope (WFirst) program to make use of the satellite. Late last year, NASA requested $14 million for the program. Congress gave them $50 million, which allowed NASA to begin working on the project quickly. This year Congress continued the high funding with $90 million, well above the $16 million that had been requested. Outfitting the satellite is expected to take several more years, and the launch is scheduled for 2025. So that the telescope can be used in a variety of research fields, the satellite is also being equipped to find and take pictures of exoplanets.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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