Optical Telescopes Part I

The beginning of modern astronomy is often linked to Galileo building his first telescope in 1609 — roughly 400 years ago! While he was not the first person to use a telescope, Galileo made many fascinating discoveries, ultimately revealing that … Continue reading

How to Buy a Telescope : Telescope Buying Guide: Dobsonian Mounts

Dobsonian telescope mounts are commonly used for reflecting telescopes or Newtonian telescopes. Learn about Dobsonian mounts for telescopes in this free video on home astronomy from a telescope salesperson. Expert: Jesse Sturgeon Bio: Jesse Sturgeon has served as a sales … Continue reading

How to Use Telescopes : Planetarium Software & Telescope Viewing

Planetarium software for telescope users and lay astronomers help viewers explore the sky. Learn about planetarium programs that help local telescope viewers from an observatory director in this free astronomy video. Expert: Rocky Alvey & Billy Teets Bio: Rocky Alvey … Continue reading

Why are telescopes that detect different types of electromagnetic waves used to observe the universe?

Satellites fitter with various telescopes orbit the earth. These telescopes detect different types of electromagnetic radiation. Why are telescopes that detect different types of electromagnetic waves used to observe the universe? First, electromagnetic waves span a spectrum. It is a … Continue reading

Astronomy vs Astrology

Science & Reason: http://tinyurl.com/ScienceReason Astronomy vs Astrology – Best of Carl Sagan’s Cosmos (Part 15) — Please subscribe to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceMagazine • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker • http://www.youtube.com/SagansCosmos — BEST OF CARL SAGAN’S “COSMOS”: 1) 10 … Continue reading

Astronomy Software

Science video on Mars presenting VRMars Astronomy Software. The video shows panoramas and images, including the “Whale” panorama and Martian sunset, taken by NASA’s Mars Rover Spirit during the Mars Rover Mission. The video was created with the use of … Continue reading

Radio Telescopes

The Sun and stars emits radio waves — not just visible and infrared light. In the 1930s, Karl Jansky built the first devise to “listen” to the sun, collecting radio waves from far off stars and focusing them onto a … Continue reading

Creation Astronomy Propaganda Debunked 02

In this episode, we’ll look at a couple of bogus attempts to undermine science related to Lunar and Solar astrophysics. I apologise for the somewhat erratic sound/volume in this video. I did not record it all in one go, and … Continue reading

2012 Questions: NASA Astronomer Responds to Conspiracy Theorists

Complete video at: http://fora.tv/2010/04/24/David_Morrison_Surviving_2012_and_Other_Cosmic_Disasters NASA scientist David Morrison shares some of the most outrageous questions and comments he has received regarding 2012 and Nibiru (“Planet X”) conspiracies. One of his favorites? “I am getting tired of all the CIA and … Continue reading

Amateur Astronomy Sky this Week for May 30 to June 5, 2010

The asteroid Ceres passes through Messier 8 the lagoon nebula on Monday and Tuesday evening — photo op! Only 3 hours and 17 minutes of astronomical darkness on Saturday evening. Not many mosquitoes yet fortunately. Comet C2008 R1 (McNaught) is … Continue reading

How to Buy a Telescope : Telescope Buying Guide: Reflecting Telescopes

A reflecting telescope should only be used for night sky viewing. Discover the difference between reflecting and refracting telescopes in this free video on home astronomy from a telescope salesperson. Expert: Jesse Sturgeon Bio: Jesse Sturgeon has served as a … Continue reading

Microsoft’s Free Astronomy Software

http://live.pirillo.com – Even if you’re not really “in to” Astronomy, you really have to check this out. The things you will see are just amazing. Go ahead… I dare you. Open your eyes, broaden your horizons. You never know what’s … Continue reading

How to Use Telescopes : How to Align Telescopes on Equatorial Mounts

Telescopes should be aligned on equatorial mounts, often centering on the North Star, to ease following celestial bodies over time. Align Schmidt-Cassegrain telescopes with an observatory director in this free astronomy video. Expert: Rocky Alvey & Billy Teets Bio: Rocky … Continue reading