In August 2012, NASA’s Voyager 1 spacecraft became the first human-made machine to venture beyond the boundary of our solar system—into interstellar space. Both Voyager 1, and its partner, Voyager 2, ...

A protective bubble comprised of solar wind plasma surrounds the entire solar system. Known as the heliosphere, this bubble exists because the solar wind’s momentum eventually slows down enough that ...

The heliosphere, a region dominated by the Sun's influence, extends far beyond the orbits of known planets and acts as a shield against cosmic rays, protecting the inner solar system. Voyager 1 and 2 ...

Editor's note: NASA and SpaceX are now targeting Wednesday, Sept. 24, at 7:30 a.m. for the launch of NASA and the National Oceanic and Atmospheric Administration (NOAA) space weather missions. Much as ...

The Sun warms the Earth, making it habitable for people and animals. But that’s not all it does, and it affects a much larger area of space. The heliosphere, the area of space influenced by the Sun, ...

What is the Heliosphere? What are the conditions that exist outside of it? The first question is simply a matter of definition while the second has been the subject of scientific inquiry for the last ...

Earth and the planets in the solar system sit within the heliosphere, a giant bubble formed by the charged particles, like protons, electrons, and alpha particles called the Solar Wind that emanate ...