Pluto's flowing ice and mysterious red haze highlight 'a scientific wonderland'

Nasa scientists discover 'a pattern that indicates the flow of viscous ice' similar to glaciers on Earth and say the atmosphere may be on the verge of collapse

New photos of Pluto released by Nasa reveal flows of nitrogen ice filling up craters, an atmosphere that could be on the verge of collapse, and a mysterious reddish haze extending 100 miles above the surface.

Scientists of the space agency's historic New Horizons mission on Friday announced the discoveries with visible delight, with lead investigator Alan Stern declaring the Pluto system a "scientific wonderland".