Author

All

Keyword

All

Stories, updates, insights, and original analysis from The Planetary Society.

At last, Ceres is a geological world

I've been resisting all urges to speculate on what kinds of geological features are present on Ceres, until now. Finally, Dawn has gotten close enough that the pictures it has returned show geology: bright spots, flat-floored craters, and enigmatic grooves.

Dawn Journal: Ceres' Deepening Mysteries

Even as we discover more about Ceres, some mysteries only deepen. Mission Director Marc Rayman gives an update on Dawn as it moves ever closer to its next target.

Curiosity update, sols 864-895: Drilling at Pink Cliffs

Curiosity's second drilling campaign at the foot of Mount Sharp is complete. The rover spent about a month near Pink Cliffs, an area at the base of the Pahrump Hills outcrop, drilling and documenting a site named Mojave, where lighter-colored crystals were scattered through a very fine-grained rock.

Why We Write to Congress

It's time to write to Congress in support of planetary exploration. Why? Because it works.

Mapping Europa

Several global maps have been made of Europa, but amateur image processor Björn Jónsson felt they could be improved—so he decided to make a new one.

An active comet, from a distance

Rosetta has closed to within 50 kilometers of Churyumov-Gerasimenko, on its way to a very close, 6-kilometer flyby of the comet tomorrow. To prepare for the flyby, Rosetta traveled much farther away, allowing it to snap these amazing photos of an increasingly active comet from a great distance.

A Fresh Approach to Fundraising

We want you to know that we’ve been listening to you. Members have highlighted the number of fundraising appeals from The Society, and we agree that the number of requests should be streamlined.

Cassini begins a year of icy moon encounters with a flyby of Rhea

At last! Cassini is orbiting in Saturn's ring plane again. I do enjoy the dramatic photographs of Saturn's open ring system that Cassini can get from an inclined orbit, and we won't be getting those again for another year. But with an orbit close to the ring plane, Cassini can repeatedly encounter Saturn's icy moons, and icy moon flybys are my favorite thing about the Cassini mission.

< 1 ... 102 103104 ... 322 >