“Doors Closing!” Those of us from the Washington, DC region recognize that phrase whenever we ride the Washington Metro. That recorded voice is typically followed by another stern voice, “STAND CLEAR OF THE DOORS!” It doesn’t seem to do much good; there are always one or two passengers who insist on standing in front of the doors, blocking the way for those who wish to get on or off.

It is a remarkable fact that one of the two operational spacecraft that can carry humans into Earth orbit is celebrating its 50th birthday—the other is the Chinese Shenzhou craft. This week, the Russian Soyuz spacecraft turned 50 years old.

Black Friday is upon us. If you are looking for ways to avoid being mauled and crushed at your local Mall, but you want to somehow observe the day in spirit, why not explore what it takes to discover a really massive and dense object, a black hole.

This week is National Geography Awareness Week, an opportunity to reflect on the significance of place and how we affect it. One fantastic way to explore geography is from above. When viewing the Earth from a high altitude or even from space, we can begin to see and record natural and man-made features and events. We can see the remains of civilizations and the aftermath of disasters.

On Monday, November 14, the Moon will be full, and also near its closest approach to Earth. It’s a “supermoon,” appearing slightly bigger than a normal full Moon.

Blue Origin, Jeff Bezo’s private rocket company, passed an in-flight test of its launch escape system Wednesday—a method of detaching a crew capsule from a launch rocket. The successful test moves Blue Origin one step closer to its goal of carrying tourists into space. How to bring crews safely back to Earth in the event something goes wrong during a launch has always been a concern. Launch escape systems have been engineered into nearly all ventures into space.