Back to Article List From the December 2008 issue What are the heliosphere, the termination shock, and the heliopause? Anne Rush, Rockford, Illinois By Astronomy Staff | Published: December 29, 2008 | Last updated on May 18, 2023 Key Takeaways: They are structures within the transition zone between the Sun’s “solar wind” and the larger interstellar environment.
Exotic Objects, Stars ‘Strange binary’: Astronomers discover a pulsar and a helium star orbiting each other
Robotic Spaceflight, Science How a signal from a 60-year-old satellite baffled astronomers for over a year