Simply put, pi is a mathematical constant that expresses the ratio of a circle's circumference to its diameter. It figures into numerous formulas used in physics, astronomy, engineering and other ...

NEW YORK (AP) — NASA is switching off two science instruments on its long-running twin Voyager spacecraft to save power. The ...

Highlights include the last U.S.-registered DC-8, owned by Samaritan’s Purse and a field hospital display. The Air Care Alliance, representing more than 50 volunteer pilot groups, will also ...

Since 1987, a highly modified McDonnell Douglas DC-8 aircraft has been a workhorse in NASA's Airborne Science Program (ASP)-see Photo 1. The aircraft, located at NASA's Armstrong Flight Research ...

"Right now the Feds are planning on a building a new, expensive headquarters in DC for NASA — even though very few NASA employees have showed up to the current DC office over the past four years!" ...

Editor's note: This story was updated to reflect NASA's March 6 blog post announcing a delay in the SPHEREx/PUNCH launch to no earlier than (NET) Saturday, March 8 at 10:09 p.m. EST (7:09 p.m. PST).

NASA's SPHEREx and PUNCH missions will need to wait a little longer before heading to space. After delaying the launch of these missions four times — they were originally slated to take to the ...

Hundreds of NASA employees — about 5% of the workforce — signed up for President Donald Trump's deferred resignation offer earlier this month, the space agency said Wednesday afternoon.

NASA’s two-for-one launch of its newest space ... lift off together aboard a SpaceX Falcon 9 rocket at 11:10 p.m. ET (8:10 PT) Monday from Vandenberg Space Force Base in California.