SciShow
Sci Show Kids: Comets and Asteroids!
A video exploring "flying space rocks" known as comets and asteroids. Learn about how comets got their name and the most famous comet. Also understand where asteroids are found and how they change into meteor then meteorite. [4:00]
Crash Course
Crash Course Astronomy #21: Comets
Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail....
Science Friday Initiative
Science Friday: Comet's Tail Shines Light on Sun
In 2011, comet Lovejoy traveled through the sun's corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, says that the wiggle of the comet's tail helps explain the sun's...
Science Friday Initiative
Science Friday: A Journey to the Oort Cloud, Where Comets Are Born
The comet ISON, discovered by two amateur astronomers last year, will zoom past the Earth next fall. But where did it come from?
NASA
Nasa Space Place: Solar System Formation
Animated video tells the story of how the solar system came to be. [3:02]
Science Friday Initiative
Science Friday: Science Diction: Comet
In this month's Science Diction, we look at the origins of the word 'comet.
Science Friday Initiative
Science Friday: A Trip to a Comet
Last week, a NASA mission paid a visit to comet Hartley 2, flying by at a distance of just a few hundred miles. We'll talk about what they learned in this audio lecture. [12:12]
Science Friday Initiative
Science Friday: Tracking Near Earth Objects
The US spends $4 million each year to search for comets or asteroids that could threaten the planet. That's not enough to get the job done, according to a new report from the National Research Council.
Science Friday Initiative
Science Friday: Studying Comet Contents
We'll check in with researchers on the Stardust probe, which captured dust from comet Wild-2 in 2004.
Science Friday Initiative
Science Friday: New Meteor Shower May Offer Skygazers a Treat, or Not
Late Friday night, Earth will sail through debris left by the comet 209P/LINEAR. Scientists are calling the shower the Camelopardalids.
Science Friday Initiative
Science Friday: Ison: The Comet of the Century . . . Or Is It?
As Comet ISON skirts the sun, it could be destroyed or emerge, even more spectacular than before.