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Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using transits, where a planet physically passes in front of its parent star, producing a measurable dip in the star’s light. Another is to measuring the Doppler shift in a star’s light due to reflexive motion as the planet orbits. Exoplanets appear to orbit nearly every kind of star, and we’ve even found planets that are the same size as Earth. We think there may be many billions of Earth-like planets in our galaxy. (11:49)
Found by teresahopson in Earth-Like Planets
March 29, 2021 at 12:35 PM
Ages: 11 - 18
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The Hunt for Habitable Planets - Professor Ian Morison discusses one of the hottest topics in astronomy: detecting other solar systems. The methods by which this has been achieved so far have yet to detect an earth-like planet, but already a miniature version of our solar system has been discovered. How do these discoveries affect the prospects for life elsewhere? (06:16)
Found by teresahopson in Earth-Like Planets
April 10, 2011 at 01:46 PM
Ages: 12 - 18
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While astronomy enthusiasts await the first images from the James Webb Space Telescope, we've got a spectacular celestial event to relish: the grand planetary alignment of June 2022. The planets have been putting up great shows in the predawn sky since March last week. As a result, we have had several planetary conjunctions and two planet parades. Unfortunately, Mercury and Uranus were missing in the April and May planetary alignments. But the two planets have joined the parade in June, and we have an alignment of all the seven planets as seen from the Earth. The last time such an event took place was way back in December 2004, almost 18 years ago. (04:38)
Found by teresahopson in Solar System Overview
June 14, 2022 at 09:26 AM
Ages: 12 - 18
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Some of the visuals took this viewer's breath away. This is a 4.5 minute HD dramatic video choreographed to powerful music, which introduces the viewer to the wonders of Astronomy. There is no narration, but none is needed. It is designed as a "trailer" to be shown in classrooms by Earth Science and Astronomy teachers in High School and college as a visual "Introduction" to the magic of the cosmos. (04:46) This is a good way to introduce/hook students on the science of space exploration.
Found by teresahopson in Teaching Astronomy and Space Science
August 13, 2011 at 11:35 AM
Ages: 18 - 18
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MEET ME AT THE CORNER, Virtual Field Trips for Kids takes you to Sand Diego to meet astronomer Dennis Mamanna. Mr. Mamanna talks about The International Year of Astronomy, the history of astronomy and the Palomar Observatory. (05:01)
Found by MEET ME AT THE CORNER in General Overview
November 14, 2009 at 01:11 PM
Ages: 8 - 13
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Astronomy is the foundation of all ancient civilizations is the theme of this video. The speaker presents insights into what creates the seasons and why the study of astronomy also resulted in people being more capable of keeping track of such things as the best time to plant crops. (02:30)
Found by freealan in Ancient Astronomy
April 5, 2011 at 12:11 AM
Ages: 12 - 18
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The Mayan astronomers looked at the sky differently than most other civilizations. Since they lived near the equator, they had more accurate
viewings of the skies and during noon, the sun cast no shadows. This video points out some of the remarkable achievements of these people, especially those dealing with astronomy. (01:47)
Found by freealan in Ancient Maya
July 17, 2011 at 08:49 PM
Ages: 10 - 18
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An exceptional video that shows the bases of Mayan astronomy, how advanced they were, and asks some interesting questions for the students to ponder. Well worth the three minutes.
Found by freealan in Ancient Maya
April 4, 2011 at 09:45 PM
Ages: 10 - 18
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Join award-winning teacher Jonathan Bergmann as he interactively teaches Astronomy: Prehistoric Astronomy: How the Ancients Looked at the Heavens. Mr. Bergmann describes how ancient people observed the sunrise, phases of the moon, changing seasons, and the brightness of stars at night. Ancient people identified constellations. This video also shows a diagram of the celelstial sphere. ( 10:55)
Found by michellehoggard in Ancient Astronomy
February 12, 2012 at 06:58 AM
Ages: 14 - 18
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Join award-winning teacher Jonathan Bergmann as he interactively teaches Astronomy: Prehistoric Astronomy: How the Ancients Looked at the Heavens. Ancient people believed that the sky rotated around the earth. Animations shows how as time passes, the stars appear to move, which is called Diurnal Motion. Other key concepts explained in this video are the Ecliptic, The Ecliptic and the Celestial Equator, Solstice, and Equinox. (10:53)
Found by michellehoggard in Ancient Astronomy
February 12, 2012 at 07:14 AM
Ages: 14 - 18
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First segment of NASA Connect Ancient Observatories explaining the foundations of astronomy and the how the Earth moves relative to the Sun. (07:50)
Found by teresahopson in Ancient Astronomy
May 22, 2011 at 02:26 PM
Ages: 12 - 18
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Join award-winning teacher Jonathan Bergmann as he interactively teaches Astronomy: Prehistoric Astronomy: How the Ancients Looked at the Heavens. In this video, Mr. Bergmann concludes the explanation of retrograde motion from the previous video. The other key concepts explained in this video are phases of the moon, solar eclipses, and lunar eclipses. (03:40)
Found by michellehoggard in Ancient Astronomy
February 12, 2012 at 07:36 AM
Ages: 14 - 18
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Join award-winning teacher Jonathan Bergmann as he interactively teaches Astronomy: Prehistoric Astronomy: How the Ancients Looked at the Heavens. This video explains seasons and their temperatures with a diagram of the earth and sun. Other key concepts explained are summer solstice, winter solstice, fall equinox, spring equinox, constellations of the Zodiac, and retrograde motion. (08:34)
Found by michellehoggard in Ancient Astronomy
February 12, 2012 at 07:24 AM
Ages: 14 - 18
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Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" (12:11)
Found by teresahopson in General Overview
August 20, 2017 at 08:36 AM
Ages: 10 - 18
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Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. (11:17)
Found by teresahopson in General Overview
August 20, 2017 at 08:40 AM
Ages: 10 - 18
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This 1:38 long video provides a brief look at what an astronomy does and the study and education needed. Several different types of jobs are reviewed. A good overview.
Found by freealan in Astronomy
September 10, 2011 at 10:48 PM
Ages: 10 - 18
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A team of rocket scientists at the University of Wisconsin-Madison's Space Astronomy Laboratory talk about innovative developments such as the Star Tracker 5000, which offers important applications for the national space program. The device accurately orients spacecraft by tracking star fields with a high level of precision. The researchers also explain how they gather information with an ultraviolet telescope launched by rocket, providing insight into the levels of invisible light in the universe. Grades 6-12. (29:08)
Found by laneyk in Visible Light
August 4, 2009 at 06:20 AM
Ages: 13 - 18
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Explore Research at the University of Florida: Associate astronomy professor Eric Ford explains his interest in the study of stars, and how astronomy is a unique scientific field. (01:15)
Found by teresahopson in Astronomy
December 31, 2012 at 04:10 PM
Ages: 12 - 18
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These images are incredible and will humble the viewer. (There is no time on the video as it is a 'live' stream from NASA.) NASA's Hubble Space Telescope is a marvel of the modern age. It has opened astronomy and space exploration to a new generation with it detailed and beautiful images from across the Universe. These videos look deeper and closer at some of Hubble's incredible images. Hubble has allowed astronomers to gaze further into our past than ever before, capturing images billions of years old. Incredible deep space astronomy videos that is only possible thanks to Hubble.
Found by teresahopson in Hubble Images
March 4, 2017 at 10:16 AM
Ages: 9 - 18
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How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth, and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars. (11:20)
Found by teresahopson in General Overview
February 24, 2020 at 06:25 PM
Ages: 12 - 18
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Who we are? Where do we come from and where are we going? How and why was the Universe born? These are some of the eternal questions associated with astronomy. (14:07)
Found by teresahopson in History of Astronomy
April 18, 2022 at 10:47 AM
Ages: 14 - 18
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This video episode shows how to best observe the other worlds of our Solar System by using proper settings and special filters. This is an episode of "The Star Party", a video guide to amateur astronomy from the crew of Orion Telescopes & Binoculars. Suitable for older elementary, middle school, and high school students.(03:12)
Found by teresahopson in Telescopes
November 1, 2009 at 08:50 AM
Ages: 10 - 18
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Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth. The biggest, Ceres is far smaller than the Moon but still big enough to be round and have undergone differentiation.
CORRECTION: In the episode we say that 2010 TK7 is 800 km away. However, 2010 TK7 stays on average 150 million kilometers from Earth, but that can vary wildly. Sorry about that! (11:33)
Found by teresahopson in Asteroids
June 6, 2015 at 05:49 PM
Ages: 10 - 18
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The fourth planet from the sun and the outermost of the terrestrial planets, Mars has long been a popular spot for missions and imagination. Phil walks you through the planet's topography, core, and features. We'll take a look back to Mars's past and makes predictions for its future, including the possibilities for human life. (10:12)
Found by teresahopson in Mars Overview
May 2, 2015 at 07:21 PM
Ages: 9 - 18
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Introduces constructivism by examining student beliefs on what causes the seasons and their explanations for the phases of the moon. This innovative workshop for teachers explores the reasons why teaching science is so difficult and offers practical advice to help you teach more effectively.
Found by laneyk in Teaching Astronomy and Space Science
March 25, 2010 at 06:50 PM
Ages: 18 - 18
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