Robotic arm fixes the ISS
The International Space Station has to endure lots of things while orbiting Earth. It has almost zero protection against flying debris and most of the time when something goes wrong with the ISS, astronauts suit up and spacewalk to check it out.
Spacewalk is notoriously dangerous, complex and time consuming, but Canada plans to reduce any risks with its design. The Canadarm2 robotic arm was sent up there and installed to help astronauts and for the first time, the robotic arm is trying to fix an external issue.
The robotic arm called Dextre was designed to fix anything that's broken outside the ISS and to catch unmanned spacecraft heading to the station. However, it looks like this is the first time when the robotic arm will be used to replace a common mission for an astronaut. However, Canada's Space Agency will remotely control Dextre and replace a few cameras on the arm. Canada's Space Agency mission control supervisor, Mathieu Caron said this will give more time to astronauts to perform scientific tasks and experiments.
Here's how the arm should work: