At the end of February 2021, a family of 3 robot probes arrived at the planet Mars. An orbiter called 'Reconnaissance', a Rover called 'Perseverance', and a drone called 'Inginuity'. The three Robots will work together to try to find life or proof that there was life on Mars in the past.
I visit the NASA.gov website quite often to see what the probes have discovered. From what I read on the web site, the drone is using off the shelf lithium ion batteries and they are being charged up by the rover but it also has its own solar panels. They say it will take a long time to charge the batteries because a lot of power is used to stop the temperature going too low, if the temperature goes below a certain level, the electrical components get damaged.
If the 'Inginuity' drone probe manages to fly, it will be the first time a machine flew on the planet. Mars' atmosphere is very thin because the solar wind from the sun striped it away so it is very hard to fly on Mars.
It will be interesting to see what the probes discover.
