Mars Express Stories

A sweeping landscape gives way to hills on the colorized horizon in this artistic Mars composite image.

UPDATED: 10 Things for Mars 10

4 min read

Scientists from around the world are gathering this week in California to take stock of the state of science from Mars and discuss goals for the next steps in exploration of the Red Planet. In the spirit of Mars 10,…

Article5 months ago

An animation shows a white cloud of material billowing away from the Sun (which is covered by a black disk at the center) toward the left side of the image, set against a red background with a couple dozen stars. The top says "STEREO Ahead COR2" and the bottom shows the date 2021-04-17 with the time progressing from 12:23:30 to 23:53:30.

Multiple Spacecraft Tell the Story of One Giant Solar Storm

5 min read

April 17, 2021, was a day like any other day on the Sun, until a brilliant flash erupted and an enormous cloud of solar material billowed away from our star. Such outbursts from the Sun are not unusual, but this…

Article9 months ago

Study Looks More Closely at Mars’ Underground Water Signals

4 min read

A new paper finds more radar signals suggesting the presence of subsurface ‘lakes,’ but many are in areas too cold for water to remain liquid. In 2018, scientists working with data from ESA’s (the European Space Agency’s) Mars Express orbiter…

Article3 years ago