NASA’s New Horizons spacecraft completed its flyby of Pluto and its five moons last week. The first detailed pictures of Pluto were met with excitement and have given astronomers a whole new understanding of the dwarf planet. And there’s even more information to come. New pictures received over the weekend show Pluto’s tail. Sacramento State Professor of Physics and Astronomy Christopher Taylor, who has been following the New Horizon’s mission since it started nine years ago, returns to explain what this “tail” is and what it means.

LINKS:

• Discovery: Pluto's Atmosphere is Swept Back Like a Comet's Tail
• Forbes.com: Why Scientists Are So Thrilled About Pluto But Still Don't Call It A Planet
• Washington Post: Finally, Here Are The Stunning Pictures Of Pluto NASA Has Waited A Decade To Capture
• Washington Post: The Heroes And The Secrets Of The Pluto Mission
• NYTimes: NASA’s New Horizons Spacecraft Sends Signal From Pluto to Earth
• NBC News: Mount Spock? New Horizons' Pluto Name List Will Please 'Star Trek' Fans