The Fastest Human-Made Object Ever

The video discusses the fastest human-made objects, focusing on the Helios 2 probe and a manhole cover from a nuclear test. It details the unexpected results of the Pascal B test, where a steel plate was launched at high speed. The Helios probes, launched in the 1970s, achieved high speeds due to their elliptical orbits around the sun. Future missions like Juno and Solar Probe Plus aim to break these speed records, with Solar Probe Plus expected to reach 200 km/s. The video concludes with a call to support SciShow on Patreon.

What are the Helios probes designed to study?

What is the expected speed of NASA's Juno mission relative to Jupiter?