Long exposures can be used to capture more light when it's too dark to get the correct exposure at fast shutter speeds. The ...

You are correct, many long-exposure astrophotos span multiple nights. I typically stay on a target for months at a time, especially when I’m living in a cloudy place. Plus, viewing locations ...

Instead of expensive silicon, this thermal camera uses a flashlight with an RGB LED, a cheap IR temperature sensor, and a camera set up to take long exposures. By shining this flashlight/IR sensor ...