Icy ridges found on Pluto

Pluto. “Penitentes” which are formed by erosion, are bowl-shaped depressions with spires around the edge, and are several meters high.Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute Using a model similar to what meteorologists use to forecast weather on … Continue reading

A New Light on Stellar Death

An artist’s depiction of a rapidly spinning supermassive black hole surrounded the rotating leftovers of a star that was ripped apart by the tidal forces of the black hole.Credit: ESO, ESA/Hubble, M. Kornmesser Back in 2015 when astronomers discovered an … Continue reading

A well-rounded star

The star Kepler 11145123 is the roundest natural object ever measured in the universe. Stellar oscillations imply a difference in radius between the equator and the poles of only 3 km. This star is significantly more round than the Sun. … Continue reading

Great valley found on Mercury

A high-resolution digital elevation model derived from stereo images obtained by NASA’s MESSENGER spacecraft has revealed Mercury’s great valley shown here in this 3D perspective view.Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington/DLR/Smithsonian Institution Scientists have discovered a … Continue reading

Sculpting Solar Systems

These three planetary discs have been observed with the SPHERE instrument, mounted on ESO’s Very Large Telescope. The observations were made in order to shed light on the enigmatic evolution of fledgling planetary systems.The central parts of the images appear … Continue reading

Changing Colors in Saturn’s North

Image Credit: NASA/JPL-Caltech/Space Science Institute/Hampton University These two natural color images from NASA’s Cassini spacecraft show the changing appearance of Saturn’s north polar region between 2012 and 2016. Scientists are investigating potential causes for the change in color of the … Continue reading