Why it matters: Space is glorious. However, off-planet video footage is typically a pixelated mess that kills all the fun. That may be about to change. NASA has managed to stream 4K ultra-HD video ...

Our solar system is surrounded by a giant invisible bubble called the heliosphere. This protective bubble is created by the solar wind, streams of charged particles flowing out from the Sun, and it ...

NASA’s Chandra X-ray Observatory has produced the first resolved image of an astrosphere surrounding a Sun-like star, capturing a massive bubble of hot gas blown outward by fierce stellar winds. The ...