The new Cosmos TV series airing on Fox is a worthy reboot of Carl Sagan's original. Following in Sagan's footsteps, host Neil deGrasse Tyson takes viewers on a voyage through the outer reaches of the solar system and beyond, showing how our sun is just one star out of a hundred billion in the majestic spiral of the Milky Way galaxy, and even the Milky Way itself is a speck in the observable universe. As in the original series, he compresses the history of the universe into a single year, showing that on that scale, the human species emerges only in the last few seconds before midnight on December 31.
Sagan's Cosmos was due for an update, and not just because our computer graphics are better. Since the original series aired, we've sent robotic rovers to Mars, sampling its rocks and exploring its history. We've detected hundreds of alien planets outside the solar system, finding them by the slight gravitational wobble they cause in their home stars, or by the brief dips in light as they pass across the star's face as seen from Earth. We've found the Higgs boson, the elusive and long-theorized particle that endows everything else with mass. We've discovered that the expansion of the Universe which began with the Big Bang is accelerating, driven by a mysterious force called dark energy. All these scientific advances deserve to be recognized and celebrated.
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