This is how Open University professor Monica Grady reacted when the European Space Agency’s Philae probe landed on a comet:
In case you missed that, she says: "I’ve waited years... I’m just so excited, I’m going to cry! I’m sorry. It’s fantastic, it’s fantastic, it’s wonderful, it’s really, really wonderful, sorry, sorry."
A particular highlight from the joyous clip is the moment she hugs BBC science editor David Shukman.
Equally wonderful are her attempts to stay calm after the emotional outbreak.