In this episode of my live Q&BA chat session, I answered a question about how "gravity slingshots" work. This is the process of using the gravity of a planet to accelerate (or decelerate) space probes so they can more easily get to the inner and outer planets. It turns out gravity is not the only process at work here.
This technique is used all the time for spacecraft, and engineers are pretty good about nailing them perfectly, too. Sometimes the probes pass by Earth and take amazing pictures of us, like when Rosetta did in 2009, and in 2007, or when it passed Mars in 2007.
Be sure to check out all my other Q&BA videos!
TODAY IN SLATE
The Democrats’ War at Home
How can the president’s party defend itself from the president’s foreign policy blunders?
Congress’ Public Shaming of the Secret Service Was Political Grandstanding at Its Best
Michigan’s Tradition of Football “Toughness” Needs to Go—Starting With Coach Hoke
A Plentiful, Renewable Resource That America Keeps Overlooking
Windows 8 Was So Bad That Microsoft Will Skip Straight to Windows 10
Cringing. Ducking. Mumbling.
How GOP candidates react whenever someone brings up reproductive rights or gay marriage.
You Deserve a Pre-cation
The smartest job perk you’ve never heard of.