Yes, the small dot above the star is a planet, at a distance of 470 light-years, in the constellation of the Scorpius. 8 times the size of Jupiter, it is an atypical body for us which are used to the solar system.
1RXS J160929.1-210524 and its companion. Credit: Gemini Observatory
They speak of it:
Slashdot underlines that it is only a confirmation that the image is one of a planet.
By the way, a very good book to read on the construction of modern telescopes: “Giant Telescopes” by Patrick McCray: it focuses on the Gemini Telescopes which made this image of an extrasolar planet.