In 1996, sciÂence writer John HorÂgan pubÂlished a book called The End of SciÂence in which he claimed that we had learned all we could know about the natÂurÂal world. And in 2008, Wired magÂaÂzine devotÂed an issue to, you guessed it, “The End of SciÂence.” SnapÂpy, grandiose titles may sell copy, but it’s also the case that each time someÂone or othÂer declares the end of someÂthing massive—science, hisÂtoÂry, war, and periÂodÂiÂcalÂly, the world–we can look back and be astonÂished at the hubris. It now seems that there are fronÂtiers we are just beginÂning to explore, and they are the fronÂtiers of our evoÂluÂtionÂary beginÂnings. While bioÂphysiÂcists like Peter HoffÂmann chart the boundÂaries between life and nonÂlife at the molÂeÂcÂuÂlar levÂel, NASA sciÂenÂtists explore the outÂer reachÂes to disÂcovÂer what Leonard Nimoy, narÂraÂtor of the video above, calls “the very beginÂning of us.”
It’s a litÂtle wonky at times, but the short film above is nonetheÂless a fasÂciÂnatÂing overview of NASA’s Dawn misÂsion, a spaceÂcraft designed to colÂlect data from the asterÂoid belt. The ship itself is a marÂvel. OutÂfitÂted with masÂsive solar panÂel wings that can powÂer it for years, Dawn conÂverts xenon gas into plasÂma, which it proÂpels from its engine at speeds up to 78,000 miles per hour (or 21 miles per secÂond) for maxÂiÂmum accelÂerÂaÂtion.
In fact, Dawn is the fastest ship NASA has ever launched. Even at top speeds, Dawn required four years to reach its first stop, the asterÂoid VesÂta, the brightÂest asterÂoid in the solar sysÂtem and the only one visÂiÂble to the naked eye. DepartÂing Earth in 2007, the ship reached VesÂta in July of 2011 and departÂed last SepÂtemÂber for the asterÂoid Ceres, which it will reach in FebÂruÂary of 2015.
These two asterÂoids are part of what is called the “proÂtoÂplanÂeÂtary disk,” a once-chaotÂic ring of dust and gas that began to coaÂlesce into our solar sysÂtem some 4.6 bilÂlion years ago. One NASA sciÂenÂtist above describes the asterÂoid belt as the “boneÂyard” of deep space—remains from the earÂliÂest epochs of time. Dawn’s misÂsion isn’t just a forÂay to unchartÂed space; it’s also a jourÂney bilÂlions years into the past, into the oriÂgins of our solar sysÂtem.
RelatÂed ConÂtent:
William ShatÂner NarÂrates Space ShutÂtle DocÂuÂmenÂtary
Star Trek CelebriÂties, William ShatÂner and Wil Wheaton, NarÂrate Mars LandÂing Videos for NASA
Josh Jones is a writer and musiÂcian. He recentÂly comÂpletÂed a disÂserÂtaÂtion on landÂscape, litÂerÂaÂture, and labor.

