Wed, 26 Aug 2009 13:20:00 PDTDr. Varoujan Gorjian explains the mind-boggling expansion of the Universe.
Thu, 05 Feb 2009 14:07:00 PSTVisit the W-5 star-forming region with Ask an Astronomer!
Mon, 22 Dec 2008 16:11:00 PSTDr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.
Thu, 23 Oct 2008 13:55:00 PDTDr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.
Mon, 25 Aug 2008 10:00:00 PDTOn the Spitzer Space Telescope's fifth anniversary, we look back at a few of its most remarkable discoveries.
Tue, 01 Jul 2008 09:20:00 PDTOur Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet.
Thu, 08 May 2008 10:00:00 PDTDr. Carolyn Brinkworth examines whether science fiction could be science fact.
Thu, 10 Apr 2008 09:40:00 PDTDr. Varoujan Gorjian fills us in on the end of a galaxy.
Thu, 13 Mar 2008 14:25:00 PDTDr. Michelle Thaller explains why some stars appear red or blue, but not green.
Wed, 13 Feb 2008 11:04:00 PSTDr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.
Tue, 18 Dec 2007 13:30:00 PSTDr. Michelle Thaller explains infrared light in this classic video.
Mon, 05 Nov 2007 11:45:00 PSTWhat makes the Earth livable? In this special animated cartoon, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.
Fri, 14 Sep 2007 11:45:00 PDTDr. Varoujan Gorjian takes us inside interacting galaxies.
Fri, 27 Jul 2007 14:15:00 PDTDr. Michelle Thaller takes us into the murky answer to this not-so-simple question.
Mon, 12 Feb 2007 16:15:00 PDTDr. Robert Hurt explains why Pluto got... well... plutoed.
Thu, 24 Aug 2006 16:20:00 PDTIf no light can escape from a black hole, how do we see them? Dr. Tom Jarrett answers.
Wed, 24 May 2006 15:30:00 PDTDr. Tom Jarrett helps us understand this difficult scientific concept using a biplane, a flying saucer, and a cow.
Fri, 9 Dec 2005 18:00:00 PDTDr. Steve Lord explains that the stars do move, but not in the way they appear to.
Tue, 25 Oct 2005 15:00:00 PDTDr. Steve Lord describes the processes that cause us to see spiral arms.
Fri, 14 Oct 2005 16:00:00 PDTDr. Davy Kirkpatrick explains the weird and wonderful solar systems we know about.
Fri, 14 Oct 2005 16:00:00 PDTDr. Davy Kirkpatrick discusses extrasolar planets.
Fri, 14 Oct 2005 16:00:00 PDTDr. Davy Kirkpatrick explains the nature of one of the most unusual objects in space.
Fri, 14 Oct 2005 16:00:00 PDTDr. Michelle Thaller explains the life cycle of stars.
Fri, 14 Oct 2005 16:00:00 PDTDr. Michelle Thaller explains the color scheme of the Spitzer Space Telescope.
Fri, 14 Oct 2005 16:00:00 PDTDr. Susan Stolovy answers the question of why only certain regions can see a solar eclipse.
Fri, 14 Oct 2005 16:00:00 PDTDoris Daou explains what causes eclipses.
Fri, 14 Oct 2005 16:00:00 PDTDoris Daou answers a question about the phases of the moon.
Fri, 14 Oct 2005 16:00:00 PDTDr. Robert Hurt answers a question about solar physics.
Fri, 14 Oct 2005 16:00:00 PDTDoris Daou answers a question about gravity and orbits.