Ask an Astronomer
By NASA's Spitzer Science Center and Infrared Processing and Analysis Center
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Real NASA astronomers answer questions about the exciting science of astronomy.
|1||CleanVideoWhere Is the Center of the Universe?||Dr. Varoujan Gorjian explains the mind-boggling expansion of the Universe.||8/25/2009||Free||View in iTunes|
|2||CleanVideoW-5 Star-Forming Region||Visit the W-5 star-forming region with 'Ask an Astronomer'!||2/4/2009||Free||View in iTunes|
|3||CleanVideoWhy Is the Sky Blue?||In this 'Ask an Astronomer' episode, Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.||12/21/2008||Free||View in iTunes|
|4||CleanVideoWhat's Between the Stars?||In this 'Ask an Astronomer' episode, Dr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.||10/22/2008||Free||View in iTunes|
|5||CleanVideoSpitzer's Fifth Anniversary||This 'Ask an Astronomer' special looks at some of the biggest discoveries from NASA's Spitzer Space Telescope over the last five years.||8/24/2008||Free||View in iTunes|
|6||CleanVideoWhat Will Happen to the Earth When the Sun Dies?||Our Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet in this 'Ask an Astronomer' video.||6/30/2008||Free||View in iTunes|
|7||CleanVideoCan a Planet Have Two Suns?||Dr. Carolyn Brinkworth addresses a famous science fiction scenario in this 'Ask an Astronomer' video.||5/7/2008||Free||View in iTunes|
|8||CleanVideoCan a Galaxy Die?||Dr. Varoujan Gorjian gives us the answer to this 'Ask an Astronomer' question.||4/9/2008||Free||View in iTunes|
|9||CleanVideoWhy Aren't There Any Green Stars?||Dr. Michelle Thaller answers this question for 'Ask an Astronomer.'||3/12/2008||Free||View in iTunes|
|10||CleanVideoHow Do You Discover an Asteroid?||Dr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.||2/12/2008||Free||View in iTunes|
|11||CleanVideoInfrared: More Than Your Eyes Can See||Dr. Michelle Thaller explains infrared light in this older video, produced by NASA's Spitzer Space Telescope (then known as the Space Infrared Telescope Facility) before it launched.||12/17/2007||Free||View in iTunes|
|12||CleanVideoM51 and Gizmo||In this animated 'Ask an Astronomer' special, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.||11/4/2007||Free||View in iTunes|
|13||CleanVideoWhat Happens When Galaxies Collide?||Dr. Varoujan Gorjian takes us inside galactic collisions in this 'Ask an Astronomer' video.||9/13/2007||Free||View in iTunes|
|14||CleanVideoWhat Is the Nearest Galaxy to the Milky Way?||Dr. Michelle Thaller explains that the answer isn't as simple as you might think!||7/26/2007||Free||View in iTunes|
|15||CleanVideoWhy Isn't Pluto a Planet Anymore?||Dr. Robert Hurt explains why Pluto got... well... plutoed.||2/11/2007||Free||View in iTunes|
|16||CleanVideoHow Can We See a Black Hole?||If no light escapes from a black hole, how can we detect them? 'Ask an Astronomer' explains.||8/23/2006||Free||View in iTunes|
|17||CleanVideoWhat Is a Redshift?||'Ask an Astronomer' uses an astronomer, a flying saucer, and a cow to help explain this difficult astronomical concept in simple terms.||5/23/2006||Free||View in iTunes|
|18||CleanVideoDo the Stars Really Move?||The answer to this 'Ask an Astronomer' question may surprise you!||12/8/2005||Free||View in iTunes|
|19||CleanVideoWhy Do We See Spiral Arms in Some Galaxies?||'Ask an Astronomer' explains the morphology of one of the most common types of galaxy.||10/24/2005||Free||View in iTunes|
|20||CleanVideoWhat Is a Brown Dwarf?||'Ask an Astronomer' explains one of the strangest objects in outer space.||10/13/2005||Free||View in iTunes|
|21||CleanVideoDo Other Solar Systems Exist?||'Ask an Astronomer' explains how we detect planets around other stars.||10/13/2005||Free||View in iTunes|
|22||CleanVideoAre Other Solar Systems Like Our Own?||Solar systems come in a large variety of flavors, as this 'Ask an Astronomer' video shows.||10/13/2005||Free||View in iTunes|
|23||CleanVideoHow Do Stars Live and Die?||'Ask an Astronomer' tackles stellar evolution.||10/13/2005||Free||View in iTunes|
|24||CleanVideoWhy Is Spitzer Painted Black?||The Spitzer Space Telescope has a funny paint job. This 'Ask an Astronomer' segment explains why.||10/13/2005||Free||View in iTunes|
|25||CleanVideoWhy Are Solar Eclipses Only Visible in Some Parts of the World?||This 'Ask an Astronomer' episode explains eclipses of the sun and why they can't be seen everywhere.||10/13/2005||Free||View in iTunes|
|26||CleanVideoWhat Causes an Eclipse of the Moon?||This 'Ask an Astronomer' episode explains lunar eclipses.||10/13/2005||Free||View in iTunes|
|27||CleanVideoWhy Does the Moon Look Like It Changes?||Phases of the Moon are clearly explained in this 'Ask an Astronomer' episode.||10/13/2005||Free||View in iTunes|
|28||CleanVideoCan You Feel a Solar Wind?||This 'Ask an Astronomer' segment attempts to explain what a solar wind is (and is not).||10/13/2005||Free||View in iTunes|
|29||CleanVideoWhy Doesn't the Moon Fall Down?||This 'Ask an Astronomer' episode explains how orbits work.||10/13/2005||Free||View in iTunes|
Great educational videos! I am an Assistant English Teacher in a small town in Japan. I am constantly looking for simple podcasts to show to my students. Although the English in these videos is too difficult for junior high students I may still show a few. The videos are fun and easy to understand. They are also a good review of my physics class from college :) Good work NASA!
I have children who are constantly wanting to use my Ipod when we are out. I appreciate the alternative! Thank you for giving us the option to view podcasts that are not only interesting, but also educational -for all ages! If anyone has any interest at all in the world/universe in which we live, these podcasts are an excellent choice!
Great for all ages
My 5 year old loves space and will watch these over and over. While he does not understand everything, it provides information to him and me making him even more curious. more please...
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- Category: Natural Sciences
- Language: English
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