Northern Spring on Mars
Explanation: Astronomical spring came to planet Earth's northern hemisphere this week (and autumn to the south) with the equinox on March 20th. But on Mars, northern spring began on January 22nd. Still in northern springtime, the Red Planet currently has a similar appearance to this composite of images from previous years taken by the long-lasting Mars Global Surveyor spacecraft. The sprawling dark region near picture center is Syrtis Major, with the whitish Hellas impact basin just below, in the southern hemisphere. The four seasons on Earth each last about 90 earth days, while Mars' larger and more eccentric elliptical orbit results in seasons that are longer and vary more widely in length - from about 140 to 190 martian sols.The Space Store is an online store offering fine quality space products from our on-line discount store. Shop our store to buy NASA gifts, SpaceX Products, Space Shuttle collectibles, International Space Station and Apollo space program products. Buy astronaut autographs, space and NASA memorabilia and collectibles, space toys, rockets, astronaut dolls, space LEGO toys, and astronaut costumes. We sell NASA flight suits, space shuttle flight jackets, NASA mission patches and mission insignia pins. Shop us for Fisher space pens, meteorite jewelry and astronomy toys.