Opportunity has been silent since June, when a global Mars dust storm blotted out the sun over the solar-powered rover's location. Now the air is clearing, and NASA will be signaling multiple times each day for 45 days. Will the rover respond? Read more.
Have you been watching the planets and moon these past few evenings? Enjoy these photos from the EarthSky community. Thanks to all who shared! Photos here.
The moon is continuing to cross the evening sky and has left bright Jupiter behind. Now it's between Jupiter and the star Antares, considered to be the Heart of the Scorpion. Read more.
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View larger. | Cassini ended its 13-year mission at Saturn a year ago, when it plunged into the giant planet's atmosphere. Now the Hubble Space Telescope is keeping an eye on the planet. From left to right, the moons visible in this composite image are Dione, Enceladus, Tethys, Janus, Epimetheus, and Mimas. Read more about this image.
Antares is a red supergiant star. If it replaced the sun in our solar system, its outer layers would extend beyond the orbit of the 4th planet, Mars. Read more.
