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ACROSS Web Portal and Software Tools Released

16 December 2025

We are pleased to announce the initial release of the Astrophysics Cross-Observatory Science Support (ACROSS) web portal and the associated ACROSS software tools. The ACROSS initiative represents part of NASA’s response to the Astro2020 Decadal Survey’s identification of Time-Domain and Multimessenger Astrophysics (TDAMM) as a top priority for the 2020s. ACROSS addresses coordination challenges that impact the capability for rapid response to new astrophysical events across NASA’s fleet (and ground- and space-based observatories globally). ACROSS provides the infrastructure needed to implement a “whole-of-fleet” approach to TDAMM science, ensuring smaller missions like BurstCube achieve maximum impact alongside flagship observatories. The software tools are open source. We look forward to your feedback and collaboration!

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This cropped horizontal image has layers of semi-opaque rusty red colored gas and dust that starts at the bottom right and goes toward the top left. There are three prominent pillars rising toward the top left. The left pillar is the largest and widest. The peaks of the second and third pillars are set off in darker shades of brown and have red outlines.