The aviation giant aims to take astronauts to the International Space Station in a capsule that is similar to Apollo spacecraft.
Rigel is the brightest star in Orion, and will eventually explode into a supernova, most astronomers say.
The CHIME radio telescope aims to explain two poorly understood cosmic phenomena, one dating back to the early universe and one taking place today.
IBEX is helping astronomers figure out where the edge of our solar system ends and the rest of space begins.
Solar eclipses are one of nature’s grandest events. What is a solar eclipse? Why are there different kinds of solar eclipses? How do they work? And when is the next one? We explain.
Over the course of 11 years, Stardust visited an asteroid and two comets and sent pieces of space matter back to Earth.
Although one of the twin spacecraft is no longer in contact with Earth, NASA's STEREO mission continues to provide insights about the sun.