A man proposed to his fiancée during an event that occurs just once every 6,800 years. John Nicotera, 33, popped the question to Erica Pendrak, 26, while the Neowise comet passed over their heads. It will be 7,000 years before anyone else can get down on one knee and do the same. Mr Nicotera loves space. He knew the rare comet would fly by for a short time. He planned his proposal to coincide with the comet being in the night sky.

Ms Pendrak immediately accepted the proposal. She told reporters she was going to see the once-in-a-lifetime event. She got the surprise of her life when John proposed. She said: "I was just completely shocked – tears and everything. I felt instant chills and pure happiness." A friend photographed the proposal as the comet whizzed by across the heavens. John and Erica like seeing historical events together. John said: "I'm massively in love with this girl."