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Once every 176 years, the four giant planets line up so a single spacecraft can slingshot from one to the next in a single...
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Once every 176 years, the four giant planets line up so a single spacecraft can slingshot from one to the next in a single...
Galileo was deliberately crashed into Jupiter. Cassini into Saturn. Both destroyed at the height of their success to protect the ocean moons they had...
It weighed barely 570 pounds and ran on plutonium. Its electronics were 1970s vintage. And in September 1979, after six years and billions of...
In October 1967 the Soviet Union announced that Venera 4 had landed on Venus. It hadn't — the probe was crushed 17 miles up,...
The Soviet Union built armored titanium tanks to survive Venus. The United States never built a lander at all. Every American Venus probe was...