|
Featured Videos
|
|
Not Right For WatchKnowLearn
Ages: 14 - 18
53 Views:
|
It's been referred to as "the Super Bowl of the Sky" - the total solar eclipse on August 21 that will allow people across the continental United States to witness a rare and spectacular celestial event. Made in Memphis - solar eclipse glasses. Martha... Teichner meets with retired NASA astrophysicist Fred Espenak (known as "Mr. Eclipse") and with other "umbraphiles" whose love of eclipses outshines all else. (08:40)
[more]
August 20, 2017 at 11:33 AM
|
|
|
Not Right For WatchKnowLearn
Ages: unspecified
1 Views:
|
Former NASA astronaut Michael Massimino offers insight on what to expect.
August 21, 2017 at 12:15 AM
|
|
|
Not Right For WatchKnowLearn
Ages: 10 - 18
3236 Views:
|
On Monday, August 21, 2017, our nation will be treated to a total eclipse of the sun. The eclipse will be visible -- weather permitting -- across all of North America. The whole continent will experience a partial eclipse lasting two to three hours. ...Halfway through the event, anyone within a 60 to 70 mile-wide path from Oregon to South Carolina will experience a total eclipse. During those brief moments when the moon completely blocks the sun's bright face for 2 + minutes, day will turn into night, making visible the otherwise hidden solar corona, the sun's outer atmosphere. Bright stars and planets will become visible as well. This is truly one of nature's most awesome sights. (01:39)
[more]
July 6, 2017 at 12:34 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 7 - 18
853 Views:
|
It is never safe to look directly at the sun's rays - even if the sun is partly obscured. When watching a partial eclipse you must wear eclipse glasses at all times if you want to face the sun, or use an alternate indirect method. This also applies d...uring a total eclipse up until the time when the sun is completely and totally blocked. (01:19)
[more]
August 4, 2017 at 03:31 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 9 - 18
565 Views:
|
This video explains how our moon creates a solar eclipse, why it's such a rare event to see, and how data from NASA's Lunar Reconnaissance Orbiter has enhanced our ability to map an eclipse's path of totality. (02:34)
July 26, 2017 at 02:46 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 14 - 18
1995 Views:
|
This video is created by a professional marketer to explain what marketing is. The video explains what a market is, what marketing is, stimulating a market, and how it relates to supply and demand. (Amateur video) (06:14)
July 13, 2009 at 07:09 AM
|
|