The long-lived Opportunity Mars rover keeps finding surprises, including these possible stone stripes. On Earth, similar features result from repeated freezing and thawing of wet soil.
Textured rows on the ground in this portion of "Perseverance Valley" are under investigation by NASA's Mars Exploration Rover Opportunity, which used its Navigation Camera to take the component images of this downhill-looking scene. The rover reaches its 5,000th Martian day, or sol, on February 16, 2018. Image via NASA/JPL-Caltech.
How to find to find the constellation Taurus in your night sky. Plus the names of some of its bright stars and star clusters and its mythology.
Image © Ian Ridpath.
But the moon might look closer to 1st quarter to you on February 22.
on Long Island, New York caught the moon on April 2, 2017 when it was nearly first quarter. He wrote: "The rising moon behind blooming oak tree buds (blurred - due to the depth of field). Happy spring to EarthSky and fellow earthlings!"
Mount Sinabung on the Indonesian island of Sumatra erupted violently on February 19, 2018. See video of the dramatic first moments of the eruption.
Image via NASA