NGC 2775, a galaxy 67 million light-years away, is puzzling astronomers with its mix of traits. The Hubble Space Telescope has released a new Picture of the Week, and this time the spotlight is on a ...

With the Interstellar Dust Experiment, scientists hope to learn more about the materials that compose our solar system and ...

The three satellites look to measure mysteries of space weather while also acting as a warning system for its dangerous effects.

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission will map it like never before.

IMAP (short for "Interstellar Mapping and Acceleration Probe") is the primary payload on today's flight. The roughly $600 ...