Planet Pi Mensae b, illustration. Pi Mensae b is one of the most massive extrasolar planets so far found, with a mass of at least ten times that of Jupiter. It may even be a brown dwarf, as depicted in this image. The planet, or brown dwarf, is shown as viewed from the surface of a rocky moon. Two other moons are seen in the sky, one spherical and one irregular in shape. Pi Mensae b orbits the yellow star Pi Mensae, 59 light-years away in the constellation of Mensa (the table). It orbits its star in 5.89 years and at a distance varying from 2.6 to 3.4 astronomical units. In our solar system,

- Image ID: P2PT6B
Planet Pi Mensae b, illustration. Pi Mensae b is one of the most massive extrasolar planets so far found, with a mass of at least ten times that of Jupiter. It may even be a brown dwarf, as depicted in this image. The planet, or brown dwarf, is shown as viewed from the surface of a rocky moon. Two other moons are seen in the sky, one spherical and one irregular in shape. Pi Mensae b orbits the yellow star Pi Mensae, 59 light-years away in the constellation of Mensa (the table). It orbits its star in 5.89 years and at a distance varying from 2.6 to 3.4 astronomical units. In our solar system,
Science Photo Library / Alamy Stock Photo
Image ID: P2PT6B