Theresa May called EU citizens who have made their home in the UK "queue jumpers". Being vilified in their adopted country by the Prime Minister has left many feeling angered - and more like strangers in their own home.
If any of [human] missions [to Mars] finds more concrete evidence of life, even of the microscopic variety, we all will face a moral and ethical quandary. Do microscopic and presumably non-sentient beings on another planet have the right to be protected from us? Is Mars their planet?