What can we learn from one of the smallest particles in the universe? A lot more than you might expect. Check out this short video as it takes a closer look at neutrinos, tiny elementary particles that carry valuable information from the...

The importance of Galileo to modern science is the focus of a short video that recognizes his major achievements.

Wonderfully irreverent, The Great Scientists series takes on the life of Sir Isaac Newton, the Father of modern physics. Part one of two looks at his early interest in light and the color spectrum. A must see!

Galileo Galilei, number ten in the A&E countdown of The Most Influential People of the Millennium, and number nine, Nicolas Copernicus, are featured in this episode. Nearly 100 years before Galileo, Copernicus theorized that Earth...

Intended for learners with a solid understanding of algebra, physics, and scientific language, this clip describes the differences and functions of spherical and parabolic mirrors. This clip is not so much about telescopes but about...

Learn how and why NASA launched the Hubble Telescope into space! Earth's atmosphere obstructs the images seen through a telescope; because Hubble is in space, it gets the clearest images. A great introduction to space science and...

This film [56:00] follows the 2009, Hubble 12 day, mission to repair the Space Telescope. Go behind the scenes with the teams of astronauts and engineers as they work to save the "orbiting observatory".

The Square Kilometre Array project is aiming to find that out, using a huge radio telescope in South Africa and Australia. When it's finished, it will be the most powerful radio telescope in the world and will be able to detect a signal...

NASA's Fermi Gamma-Ray Telescope is finding hundreds of new objects at the very edge of the electromagnetic spectrum. Many of them have one thing in common: Astronomers have no idea what they are. [3:27]

The Fermi Gamma-ray Space Telescope recently produced a map of the night sky. Out of 1873 new sources, nearly 600 were complete mysteries. In this week's ScienceCast, researchers speculate on the nature of the mystery objects - including...

Host Phil Plait explains how telescopes work and offers up some astronomical shopping advice. In this episode, we learn how telescopes do two things: collect light, and increase our ability to resolve details. Learn the difference...

University of Nottingham astronomers talk about telescope diameter, and how the size and quality of a telescope's mirror determine what we see when looking through it. Offers a look at the opportunities offered by the "Extremely Large...

Take a safe peek into the sun with this short piece about how scientists are using solar space telescopes to study our closest star. [3:50]

Take a peek though the Atacama Large Millimeter/submillimeter Array telescope, or ALMA, and find out the scientific possibilities of this technology. [2:30]

Phil Plait explains how telescopes work and offers up some astronomical shopping advice in this Crash Course episode.

Explore why the moon looks the way it does. Watch kids use the scientific method to learn how craters form.

The history of the Universe decorates the night sky. Learn how to watch this history by studying cosmic light emissions. [6:22]

"Get to know the technologies behind three key missions that are driving the most exciting and productive era in the history of solar research." [3:51]

A bill approved by the House Committee on Appropriations cuts funding for NASA's James Webb Space Telescope in 2012. (The bill has not yet been approved by the full House and Senate). Ira Flatow and guests discuss the status of the...

We'll look back on 400 years of telescopes.

A book in Braille tries to make images from NASA space telescopes accessible to the visually impaired.

Check in on researchers who are using a new telescope in Antarctica to probe the edges of the universe. Find out what the researchers hope to find, and why the South Pole is a good place to do astronomy.

NASA will give the dormant WISE space telescope a new task, enlisting it in the hunt for near-Earth asteroids.

The telescope's massive mirror will unfurl on a newly completed set of wings.