THERE is plenty to be depressed about these days. The year-long Covid-19 pandemic continues to plague people in India and around the world, the government obstinately refuses to engage with the existential issues raised by farmers, and freedom of speech and everyone expressing critical opinions face continued assault. In the midst of these dark clouds, recent space expeditions to Mars by the UAE and China, and especially the dramatic soft landing of NASA’s Perseverance Rover on the red planet streamed live at 2:30 am on Wednesday, February 24, 2021, came as welcome rays of light.