Artist Mario Irarrázabal created the Hand of the Desert after the city of Antofagasta, Chile, asked him for something notable, to fill the empty space of the Atacama Desert. Astrophotographer Yuri Beletsky captured it at night.
Have you been watching the moon's sweep past Jupiter this week? From the time they rise in mid- to late evening until dawn, they're still the brightest things up there.
Europe's CryoSat satellite was used - over 7 years - to track 10,000 miles (16,000 km) of Antarctic coastline. It can be seen warm ocean water is eating away at Antarctica's floating margins.
Red Mars and golden Saturn were only 1.3 degrees apart on April 2, 2018, about the width of your finger at arm's length. Photos from the EarthSky community. Thanks to all who submitted.
"The next few weeks are the last chance to observe Sirius, Orion and the Hyades in the evening sky. Then we say goodbye to our old friends of the winter skies."