In Russia's Far East, one of the world's most active volcanoes creates a striking scene.
A pretty witch in the sky.
Dark matter makes up much of the cosmos, yet no one knows exactly what it is. Soon, physicists may finally solve one of science’s biggest mysteries.
NASA's first manned deep-space craft is designed to eventually take humans to Mars.
A mid-level burst of radiation looks like a twinkle in the sun's eye.
Our favorite space agency has just set a new communication speed record. With lasers!
The Hubble and James Webb space telescopes won't find life beyond the solar system. With funding and support, here's what might.