WISE-browndwarf

NASA's WISE spacecraft's infrared vision sees plenty of low-mass stars and brown dwarfs (green dot), but no Planet X. (NASA)

NASA’s WISE spacecraft’s infrared vision sees plenty of low-mass stars and brown dwarfs (green dot), but no Planet X. (NASA)

Download Original: 630 × 360 NASA’s WISE Mission Reports No Signs of ‘Planet X’

NASA’s WISE spacecraft’s infrared vision sees plenty of low-mass stars and brown dwarfs (green dot), but no Planet X. (NASA)