8 Solar System facts that will amaze you

Extreme travel is always dangerous. Deadly currents and whirlpools on rivers, avalanches of ice on mountains. But what if a wall of fire, more than 500 million kilometers [300 million miles] in size, gets in the way? Although impossible on Earth, this can happen in space. And the space probes Voyager 1 and Voyager 2 might have recently encountered such an obstacle. Its temperature exceeded that of fires on Earth dozens of times. Forty-five years had passed since the launch of Voyagers from Cape