mars

Martian Dust Devil from above

There are many dust devils on Mars—little twisters that raise dust from the surface. They have also cleaned dust off of the solar panels of the rovers Opportunity and Spirit, improving the solar power production….


From very far to very near

ESA’s latest Mars orbiter has moved itself into a new path on its way to achieving the final orbit for probing the Red Planet. The ExoMars Trace Gas Orbiter arrived last October on a multiyear…


Long distance picture of Earth

This composite image of Earth and its moon, as seen from Mars, combines the best Earth image with the best moon image from four sets of images acquired on Nov. 20, 2016, by the High…


Is a Moon stop necessary?

As a new administration prepares to take office, speculation abounds regarding what direction US space policy will take after the transition, as well as who will assume leadership roles at NASA and in other influential…


Sniffing out Mars

After the smooth arrival of ESA’s latest Mars orbiter, mission controllers are now preparing it for the ultimate challenge: dipping into the Red Planet’s atmosphere to reach its final orbit. The ExoMars Trace Gas Orbiter…


Mars Holiday on Ice

Gas under pressure will choose an easy escape route. In this image, the terrain is covered with a seasonal layer of dry ice. The weak spots, for gas sublimating from the bottom of the seasonal…


ExoMars Meets Phobos

The ExoMars Trace Gas Orbiter has imaged the martian moon Phobos as part of a second set of test science measurements made since it arrived at the Red Planet on 19 October. The Trace Gas…