This will help understand how charged particles from the Sun are energized and how the solar wind interacts with interstellar space at the solar system’s boundary. Ultra is a direct descendant ...

NASA's Interstellar Boundary Explorer has made the first detection of neutral atoms coming from the Moon (background image). The color-coded data toward the bottom shows the neutral particles and ...

Chief among those mysteries is the exact boundary of the heliosphere and local interstellar space, known as the heliopause. While NASA has successfully sent two probes (Voyager 1 and 2 ...