520 views

4:38

Watch
- Search Videos
  
  Advanced search »
- Submit a New Video
Discuss
About
- Try clicking on the various channels to see videos posted to that channel - if you're into music you can click the Music channel to get more music sifts - go on and explore! Use the "hotness" when you have opened the channel link to get videos that have gotten a lot of votes, or use "newness" to have a look at the new sifts.
  When browsing sifts you like, have a look at the Related Posts list to see other related videos, click the tags under the video title to see more sifts tagged with the same tags or have a look at other sifts from the same user in the More Posts By list. If the sifted video is in a play list, have a look at the play list to see other interesting videos the Sift users have linked together.
  Enter the Sift Lounge to chat with online sifters about anything and everything, or read interesting posts in the Sift Talk forum.
  The Top New Videos list is always full of interesting, current videos. It is always recommended that you have a look through the Top New Videos, but also have a look at these:
  - Upcoming Unsifted Videos - active video submissions that neither are published to the front page nor archived to the submitter's personal queue
- Have you seen a really funny, surprising, scary, interesting, cute or in any other way extra good quality video?
  Post and share it here - VideoSift is the best video aggregator on the Web, where we share, discuss, promote, and interact with the best videos out there on the web. Post it here, and share it with the large community of video-interested users. And - you are guaranteed to find more very good videos here already!
  Mind you, we only share videos you discover that someone else has made; if you "self link," by posting a video you have made, have posted or have interests in, you risk the ban hammer - read the posting guidelines before posting. The sift is NOT for promoting your own videos - it is for sharing videos others have made.
  Submit a Video Now »
Login

NASA | New Craters on the Moon

submitted by Aard Vark

(oritteropo)
9 years 2 months 1 week ago

Mark Robinson of NASA Goddard Space Centre, LROC Principal Investigator, talks about what the LROC has discovered... it starts off a bit slow covering background info, but hang in there, it picks up and has a cool story about hunting the March 17 crater after 2:30.

YouTube description:

Planetary scientists believe that small impacts regularly bombard the Moon, but until recently, they’ve had no way to distinguish new craters from the already pockmarked lunar surface. In 2009, NASA’s Lunar Reconnaissance Orbiter (LRO) arrived at the Moon and began taking high-resolution photographs. By comparing pictures taken early in the mission with more recent images, the LRO camera team at Arizona State University has discovered more than two-dozen new impact craters – including an 18-meter-wide crater caused by a bright flash on March 17, 2013. LRO is managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

Written feature on nasa.gov:
http://www.nasa.gov/content/goddard/nasas-lro-spacecraft-finds-march-17-2013-impact-crater-and-more/#.VQlXq2SUeew

Learn more about LROC and the detection of the March 17, 2013 lunar impact crater:
http://lroc.sese.asu.edu/posts/770

Learn more about NASA’s Lunar Reconnaissance Orbiter:
http://www.nasa.gov/mission_pages/LRO/main

This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11806