Death Star
The first Death Star is depicted in various sources of having a crew of 265,675, as well as 52,276 gunners, 607,360 troops, 30,984 stormtroopers, 42,782 ship support staff, and 180,216 pilots and support crew. Its hangars contain assault shuttles, blastboats, Strike cruisers, land vehicles, support ships, and 7,293 TIE fighters. It is also protected by 10,000 turbolaser batteries, 2,600 ion cannons, and at least 768 tractor beam projectors. Various sources state the first Death Star has a diameter of between 140 and 160 kilometers. There is a broader range of figures for the second Death Star's diameter, ranging from 160 to 900 kilometers.
Hypervelocity Asteroid Intercept Vehicle
In 2013, a meteor about 30 meters in diameter and weighing about 13,000 metric tons had an impact event over Russia. Once in Earth's lower atmosphere it burned up and then exploded. NASA expected the meteor to burn up without any issues, but was not the case. This relatively small meteor damaged over 7200 buildings and injured over 1400 people. The Chelyabinsk meteor brought renewed attention towards asteroid defense and the remains of the meteor gave scientists more data on asteroids.