... Ice Volcanoes on Mars . ... All of Mars . ... A Brighter Comet LINEAR . ... This comet LINEAR first brightened impressively in late March as its active nucleus began to fragment, prompting some speculation that the comet might soon break up completely. ... Today, earthbound skygazers can celebrate a solstice, a new Moon, the closest approach of planet Mars since 1988 ... oh yes, and a total eclipse of the Sun, the first total solar eclipse of the third millennium. Total Eclipse of the Active Sun . ...