
A cutaway model of the radiation belts with the 2 Van Allen Probes satellites flying through them.

NASA’s Fermi Gamma-ray Space Telescope orbits our planet every 95 minutes, building up increasingly deeper views of the universe with…

J-2X rocket engine testing continues at NASA’s Stennis Space Center in Mississippi with the second in a series of tests…

J-2X rocket engine testing continues at NASA’s Stennis Space Center in Mississippi with the second in a series of tests…

NASA is designing and building the Stage Adapter that will attach the Orion crew vehicle to the United Launch Alliance…

This artist’s concept illustrates a supermassive black hole with millions to billions times the mass of our sun. Supermassive black…

One of the Expedition 34 crew members aboard the International Space Station, flying at an altitude of approximately 240 miles,…

Scientists measure the spin rates of supermassive black holes by spreading the X-ray light into different colors. The light comes…

The solid lines show two theoretical models that explain the low-energy X-ray emission seen from the galaxy NGC 1365 by…

In late February 2013, a major snowstorm made its way across the continental United States, dropping snow from Colorado to…