Both portable power stations and uninterruptible power supplies can give backup power to your most important devices -- but you'll want to make sure you have the right one for the job.

A portable power station with a 2,048 Wh capacity will cost around $1,500 and weigh around 60 pounds, while a power station with a 4,100 Wh capacity may cost around $3,500 and weigh 100 pounds.

The International Space Station has been orbiting our planet for decades, but how did it get up there and how long did it take? Here's everything we know.