Astronomers have discovered the darkest of open exoplanet - a distant gas giant the size of Jupiter, called TrES-2b. According to the study, TrES-2b reflects less than one percent of the sunlight that makes it darker than any planet or satellite in the solar system.
"TrES-2b reflects much less light than black acrylic paint, so it’s a really dark world," - said astronomer David Kipping of the Harvard-Smithsonian Center for Astrophysics, lead author of the discovery.
Jupiter in our solar system is shrouded in bright clouds of ammonia that reflect more than a third of sunshine. But the planet TrES-2b (which opened in 2006 during the Trans-Atlantic Exoplanet Research) has no such clouds due to very high temperatures.
The orbit of TrES-2b has been removed from its star by only 5 million kilometers. The bright light from the star heats it to a temperature of 1,800