Goodbye, Cassini | | The Cassini spacecraft has become part of Saturn, the planet it studied so spectacularly and so long. Cassini's last images and final moments, here. | | |
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Occultations galore on September 18 | | It'll be the first time since 2008 that the moon occults - or covers over - 3 planets in less than a day. For good measure, the moon also occults a bright star, Regulus. | | |