Voyager's Puzzling Termination Shock Discovery
NASA announced that the Voyager 1 & 2 spacecrafts have discovered puzzling phenomena as the two have reached the termination shock, the region of the Solar System which delienates the solar wind from interstellar gas.
The findings of the two spacecrafts, launched in 1977, suggests that the heliosphere is irregular in shape, bulging in the north while compressed in the south. Voyager 1 detected charged particles at 85 AU while Voyager 2 detected charged particles at 76 AU.
Photo credit: NASA