January 17, 2026 • Thousands of people rallied in Copenhagen to push back on President Trump's rhetoric that the U.S. should acquire Greenland. January 17, 2026 • The Administration for a Healthy ...

Abstract: Localization is an essential capability for mobile robots, enabling them to build a comprehensive representation of their environment and interact with the environment effectively toward a ...

Abstract: This paper presents a tutorial on the Tracking, Telemetry, and Command (TT&C) for spacecraft and satellite missions. In particular, it provides a thorough summary of the design of the TT&C, ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...

The Poynter Institute is a 501(c)(3) nonprofit global leader in journalism, serving democracy through the teaching, practice, promotion and advocacy of ethical, independent reporting for all. We are ...

Dēmos is a non-profit public policy organization working to build a just, inclusive, multiracial democracy and economy. We work hand in hand to build power with and for Black and brown communities, ...