Liz MacDonald tells SciFri what causes these beautiful polar "glitter bombs."
The Cassini spacecraft is in the midst of a series of dives through Saturn’s rings.
The solar eclipse provides an opportunity for scientists to study the sun’s atmosphere and polar plumes.
In NASA's BASALT project, a team of engineers simulate challenges astronauts may face during a mission on Mars.
The moon’s plumes contain evidence of hydrothermal activity...which on Earth support thriving ecological communities.