Each day, it requires about 40 of these pulses to remain aligned with Earth. The spacecraft officially crossed the boundary known as the heliopause in August 2012, making it the first human-made ...

Voyager 1 was launched waaaaaay back in 1977. I would have been 4 years old then! It’s an incredible achievement that ...

After 47 years and 15 billion miles, the Plasma Science Experiment aboard NASA’s Voyager 2 spacecraft has been turned off. NASA’s twin Voyager spacecraft were originally designed for a four-year ...

Although mostly empty, it contains thin gas, dust and cosmic rays. This area starts where a star’s influence—such as the Sun’s solar wind—ends at the heliopause. Having crossed this boundary in August ...