'That's one small step for man, one giant leap for mankind'. Neil Armstrong's famous words when he became the first man to step on the moon in 1969 bring chills even today.
It has not been that long since Alisson Becker denied Napoli's Arkadiusz Milik in the 92nd minute at Anfield in December 2018 to secure a 1-0 victory in matchday six for the Reds and confirm their passage to the last 16.
However, that moment's significance to Liverpool fans is as massive as Armstrong's step on the moon was for scientists.
'That's one small dive for Alisson Becker, one giant leap for Jurgen Klopp's Anfield legacy!'
It has been 51 years since Armstrong's famous quote, and science has made major leaps since them. Now, scientists predict that future astronauts could make lunar buildings out of moon dust and pee.
An article by ScienceNews reads: "The suggestion of chemist Anna-Lena Kjøniksen and her colleagues, who made cement from urea — a major component of urine — and faux lunar soil.
"Researchers have suggested using lunar soil to make concrete or cement...The team mixed a silica and aluminium oxide powder — a stand-in for lunar dust with powdered urea bought from a chemical supply company, not distilled from real urine, along with some water to make the cement.
"The mixture held its shape under lightweight and withstood temperature changes..'It's such a daft idea, but here we are!' said materials scientist Belinda Rich."
Thankfully, it did not take Liverpool 51 years to make equivalent progress in the footballing world - it has been just over a year and a half since Alisson's save, and Liverpool have since then become the best team in the world.
Champions League winners, runaway Premier League leaders, unparalleled domestic dominance. Who knows what's next in store? A double of the PL and CL next season, maybe?
Well, all we know is this - science may yet build a house on the moon made from dust and pee, but it will never be able to explain to the emotions at Anfield when Milik took that shot and the impulsive chemical reaction that went through the brain of our brilliant Brazilian when he made that save.
