A group of citizen scientists can take over a 36-year-old decommissioned robotic space probe that will fly by the Earth in August, the National Aeronautics and Space Administration said on Wednesday. Launched in 1978, the International Sun/Earth Explorer-3 (ISEE-3) spacecraft studied how the stream of charged particles flowing from the sun, the so-called solar wind, interacts with Earth’s magnetic field. After completing its primary mission, the probe was given a new name, the International Comet Explorer, and new targets to study, including the famed Comet Halley as it passed by Earth in March 1986. A third assignment to investigate powerful solar storms, known as coronal mass ejections, followed until 1997, when NASA deactivated the spacecraft. In August, the satellite’s graveyard orbit around the sun will bring it back by Earth, a feat of physics that caught the eye of an ad hoc group of citizen scientists. Last month, the team launched a successful crowd-funding project to r