Dear aliens, don’t you know that you have our hearts? We should never be worlds apart! So you’ll excuse us for building a giant space umbrella to try and shake you out of hiding, hopefully. NASA’s Jet Propulsion Laboratory at Cal Tech has already begun work on Starshade, a massive screen that will be positioned in space and take synchronized flight with a space telescope. The idea fueling Starshade is to use this big kahuna to block the light from bright stars to create a high-contrast shadow. This will hopefully give scientists and researchers a better view of exoplanets that could potentially host life forms.
So whereas a solar sail might be a few hundred metres across, Nasa’s space umbrella would need to be a staggering 40 kilometres in diameter – the size of a city – with the wires wound-up inside the spacecraft for launch on a conventional rocket such as Nasa’s new Space Launch System.
Our rapidly warming world could cause serious problems for civilisation in the decades to come. But could a giant space umbrella help cool down our planet? BBC Future investigates.
The has been through revolutionary development because of . Automatic Space Place umbrella is extra durable and adapted to a true rainy day that usually involves wind. It’s not only protection against rain but also for heavy winds up to 80km/h without being turned inside out. Open and closes automatically by pushing a button.