On March 1, 2018, the European Space Agency (ESA) released this video from its Mars Express spacecraft, which has been orbiting Mars since December 2003. The video combines 30 images as individual frames and shows Phobos passing through the frame with the gas giant planet Saturn, some 600 million miles (roughly a billion km) further away. Be sure to expand the video to full size to see Saturn as a small ringed dot in the background.
Read more from ESA about Mars Express’ observations
Bottom line: Phobos drifts in front of Saturn, as seen by Mars Express.
Like what you read?
Subscribe and receive daily news delivered to your inbox.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
More from
Deborah Byrd
View All
Vega is a bright bluish star on May evenings
May 10, 2024
Arcturus, the brightest star of the northern sky
May 9, 2024
1st American in space, 63 years ago today
May 5, 2024
Mammatus clouds are ominous and beautiful
May 3, 2024