One way they could have got there is if multiple planets have interacted in a gravitational "billiards game", in which one planet might have been flung in towards the parent star (sometimes to be swallowed whole), while another might have been thrown into an eccentric orbit, or perhaps even ejected from the system altogether.

BBC: Star 'eats' a planet

Later, return to the scene at Los Establos and take a night time stroll around the hotel's manicured gardens, or unwind with a game of billiards in the Grand Salon.

BBC: Daily deal: An escape to the Panamanian cloud forest

On his last U.S. visit, the third-in-line to the British throne stormed last year into the headlines when he was caught frolicking in the nude with a woman after an alleged game of strip billiards in his Las Vegas hotel room.

NPR: Prince Harry To Visit US, Skipping Vegas This Time

Edward Reeve was playing billiards with Cyprian Splaine of Liverpool, a swashbuckling scholastic who was good at whatever game he took on.

NPR: Excerpt: 'Exiles'