The X-15 is the only conventional aircraft that has ever been flown above the “Karman Line” separating the Earth’s atmosphere from space.

Let’s take a look at a few of the fastest American aircraft ever flown. Operated by both the U.S. Air Force and NASA, the X-15 is the fastest aircraft ever flown. Even today, nearly sixty years ...

The X-15 is a legendary and pivotal part of aviation history. Designed to fly high and fast, it tested the limits of engineering and subjected pilots to conditions that future astronauts would face.

A supermassive black hole surrounded by gas and dust as seen in infrared light (top left), visible light (top right), and low- and high-energy X-rays (bottom ... in a NASA Jet Propulsion ...

Multiple NASA telescopes recently helped ... are so thick they block even low-energy X-ray light. Comparable searches have previously found less than 15% of supermassive black holes are so obscured.

This is a dramatic increase from the previous estimate of 15%, though the ... that is run by NASA's Jet Propulsion Laboratory in Pasadena, and can detect the high-energy X-rays emitted by the ...

Mars is approaching opposition on Wednesday (Jan. 15), the moment when it is situated ... Kim shot the scene with a Fuji X-T5 and Fujinon XF 150-600mm lens, captured at f8/600mm and f11/840mm ...

Upcoming SpaceX, Blue Origin, NASA rocket launch schedule in Florida ... the satellite "is an international provider of X and military Ka-band for European government and military applications." ...

NASA and Lockheed Martin recently released photos of the X-59 "quiet" supersonic jet conducting tests of its afterburner, ...

NASA's Sustainable Flight Demonstrator (SFD) project recently concluded wind tunnel tests of its X-66 semi-span model in ...

The X-59, part of NASA's Quesst program, completes afterburner testing for supersonic speeds with reduced noise.