A NASA spacecraft erected a large, foil solar sail in orbit around Earth last week, after a failed attempt days earlier.
Our solar system resides inside a vast cavity, now known as the Local Bubble, which is about 1,000 light-years across. The Local Bubble is a region of surprisingly low-density gas that surrounds ...
Voyagers 1 and 2 are on a one-way trip, sent forth to study the boundary between our solar system and interstellar space. In 2012, Voyager 1 started sending home readings indicating that it had ...