Comets and the Stardust Mission

The occasional appearance of comets has awed humans throughout history. But how much do we really know about comets? Did a comet kill the dinosaurs? And, what can comets tell us about our own ancient history? With comet dust from NASA's Stardust mission, scientists like Hope Ishii, a Research Scientist at Lawrence Livermore National Laboratory, are beginning to answer these questions. She and high school teacher Tom Shefler look at how comets formed, their role in the Earth's history and the clues about what happened over 4 billion years ago. Series: Science on Saturday [5/2008] [Science] [Show ID: 14492]

Category:

Education

Tags:

• Comets
• Stardust
• mission
• space
• science

[NaturalSelection101]

great video

[jimthebaptist67]

@takeyourpillz - Yea the truth would get tiresome to those with an agenda of lies.

[takeyourpillz]

@jimthebaptist67 a creationist by any chance? grow up for goodness sake, you people are tiresome

[takeyourpillz]

ermm so the sun is closer to the earth than the moon is? and they let her teach people? sounds like she should go back to school herself!!

[MrKevMan]

At 11:32 she says the diameter of a coma could be 100,000 miles, which is bigger than the distance from the earth to the sun. Uhhh. The distance from the earth to the sun is 90 million miles, not 90,000.

[jimthebaptist67]

On this lecture about comets why did she:

1. Get into origins?

2. Teach the old earth theory and tell the kids to "write it down"

3. Not stick to just the facts and not what "scientist believe"?

Is there a message behind the lecture? Is she trying to get the kids to "wrap their minds" around the evolution theory?

[germanhermida]

Soberbia presentación, aunque un poco frustante que no hubiese mostrado los resultados mas fuertes de la mision Stardust. Esperemos que Rosetta nos diga mas!.

[wazonu]

Sweet I really Enjoy Learning..

[aKaBabyJesus]

LOL

[atomic7732]

at 5:11 she says 1999