It's amazing to think of what's out there: This almost (but might not be) planet is 14 times the mass of Jupiter:
Has the youngest known planet been spotted?
"A team of astronomers says it may have spotted the youngest planet ever found, boasting an age of less than 100,000 years old, and perhaps as young as 1600 years old. They say it bolsters a controversial theory that planets form very quickly, like stars – but other astronomers say the massive object may not be a planet at all but a 'failed' star, which explains its speedy birth."