X-ray mystery shrouds Pluto
Despite wrong conditions, handful-plus of photons detected streaming from dwarf planet
![Pluto](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/110416_CC_pluto-xray_main.jpg?fit=860%2C460&ssl=1)
X-RAY SURPRISE An unexpected trickle of X-rays (blue) surrounds Pluto, possibly from a tail of gas dragging behind the dwarf planet.
X-ray: NASA, CXC, JHUAPL, R.McNutt et al; Optical: NASA, JHUAPL