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, ...

Students at Unity Reed High School are making a difference in their community this holiday season, launching an Angel Tree program at the school inspired by the Salvation Army’s initiative. The ...

Alongside his parents, A.C., a boy who was barred from using the boys’ restroom with the other boys because he is transgender, has sued his Indiana school district for violating his right under ...

HALIFAX - Justice Minister Sean Fraser hammered home the message of strength through global unity and respect at the Halifax International Security Forum. Speaking at a panel Sunday morning, Fraser ...

WATERLOO, Iowa — The Black Hawk County chapter of the NAACP is raising concerns about racist comments circulating online as a local election approaches. Current Waterloo Mayor Quentin Hart faces a ...

CLINTON, Iowa — Unity Christian School’s plan to move across the Mississippi River, from Fulton to Clinton, has been nearly a decade in the making, but the early stages of construction were anything ...

Zohran Mamdani, after a triumphant campaign built on progressive ideas and a relentless focus on affordability, will become the city’s first Muslim mayor, and its youngest in more than a century. race ...

A man with his belongings near the Martin Luther King Jr. Memorial Library in Washington where police were clearing an encampment on Thursday. Kenny Holston/The New York Times Members of the National ...