One of Jupiter's stripes that 'disappeared' last spring is now showing signs of a comeback, Nasa has confirmed. Earlier this year, amateur astronomers noticed that a longstanding dark-brown stripe ...

Additionally: Today, the International Astronomical Union places the dividing line between brown dwarfs and planets at 13 Jupiter masses. This is the minimum mass required to ignite deuterium fusion.

Jupiter's "brown barge" can be seen in a new image taken by the Juno spacecraft. Pictured: In this image provided by NASA, ESA, and the Hubble SM4 ERO Team, the planet Jupiter is pictured July 23 ...

Brown barges are cyclonic regions that usually lie within Jupiter's dark North Equatorial Belt, although they are sometimes found in the similarly dark South Equatorial Belt as well. They can ...

A team of astronomers has discovered that the closest known brown dwarf, Luhman 16A, shows signs of cloud bands similar to those seen on Jupiter and Saturn. A team of astronomers has discovered ...

Computer simulations suggest that if a more massive object, like a brown dwarf (which contains the mass of dozens of Jupiters), orbited the Sun instead of Jupiter, it would have been harder for ...