An article published in the journal “Nature Communications” reports a study on the activity of cryovolcanoes existing on the dwarf planet Pluto which highlights how it has continued until recent times from a geological point of view and may still be present. A team of researchers led by Kelsi Singer of the Southwest Research Institute used data collected by NASA’s New Horizons space probe to examine the marks left by cryovolcanoes in the Sputnik Planitia region, in the large heart-shaped area on the surface. One conclusion is that Pluto has an underground heat source that kept it geologically active much longer than might be expected from a dwarf planet.