But according to University of Toronto astronomer Ray Jayawardhana and his team, the Hubble discovery might not be all it seems.
Speaking at the Extreme Solar Systems II conference in Jackson Hole, Wyoming, earlier this month, Jayawardhana pointed to an oddity in Fomalhaut b's orbit: it seems to haven take a misstep. For any exoplanet to deviate from its expected orbit is a big red flag, after all.
But according to astronomer Paul Kalas, of the University of California, Berkeley, and lead author of the 2008 Hubble study, it's not Fomalhaut b that's taken the misstep.
"You have one scientist trying to create a controversy out of nothing," Kalas said in a Nature News article.