Since 2015, NASA conducted its earliest studies for the furthest planets in the galaxy, and the agency spotted several mountains on its surface
However, NASA observed two volcanoes which spewed ice, instead of molten lava in a process known as cryovolcanism.
Kelsi Singer, a senior researcher and the author of the study said: “We tried to find some other way to explain it, but we just really couldn’t."
Experts added that any volcano needs a molten fuel source, so there was some sort of heat that drove this lava to be thrown out which means that the underworld of the planet was a mixture between hot and icy.
This is could be a poof for the presence of a liquid surface, maybe ocean, underneath those volcanoes.
Experts highlighted that the surface of Pluto is full of strange and large formations look like glaciers. Although those formations were spotted on several celestial objects, observing them on Pluto is somehow confusing.
The photos and the data used in the study were collected and sent by New Horizons rover that launched by NASA in 2014.