crater

Siloe Patera, crater or super volcano?

Siloe or S(h)iloam was a fountain of health near Jerusalem. It is mentioned in the Bible, John 9:6-7. In this story, Jesus – on the Sabbath – cures a blind man. Patera is Latin for…


The more Mars pictures, the better

Why does HiRISE take so many repeat images of the same area? Repeat coverage actually serves a special purpose, such as detecting seasonal changes (frost deposition and sublimation) and temporal changes (dust devil tracks and…


Sundman V got a visible hit

April 18, 2014 the LADEE Moon probe hit the Moon at full speed. The results are accordingly: a new crater in the vicinity of Sundman V. (Karl Sundman was a mathematician from Finland. He lived…


Water on the hottest planet of the Solar System

NASA’s MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft has provided the first optical images of ice and other frozen volatile materials within permanently shadowed craters near Mercury’s north pole. The images not only…


An exo-winter wonderland

Over billions of years, the southern uplands of Mars have been pockmarked by numerous impact features, which are often so closely packed that they overlap. One such feature is Hooke crater, shown in this frost-tinged…


A playful crater floor

The planets in the Solar System are continuously bombarded by space rocks. This violent process early on formed the planets by accretion, and impacts still shape the surface of terrestrial and icy bodies today. Since…


Moon Art

This may look like a work of abstract art, but in reality, it’s for science! This colorful image is an LROC slope map of the northwestern portion of the floor of Posidonius crater. Warmer colors…