Catalog Search Results
Pub. Date
2015.
Language
English
Description
Survey the history of spectroscopy to understand how a telescope and a diffraction grating can disclose the composition of a star and its planet. Then learn how transits and occultations are ideal for analyzing planetary atmospheres, paving the way for the search for signatures of life..
Pub. Date
2017.
Language
English
Description
Since no human can touch the sky, any unexpected celestial event must be a divine omen. Reenter this primordial state of mind, seeing eFilmclipses and comets the way they were perceived before the advent of modern science. In the course of this investigation, discover why comets became more feared than eFilmclipses.
Pub. Date
2017.
Language
English
Description
Explore Neolithic tombs and monuments across Europe, discovering an array of alignments toward astronomical events. Start with two sites that are similar to Stonehenge in their clear orientation to the winter solstice: Maes Howe in the Orkney Islands, and Newgrange in Ireland.
Pub. Date
2013.
Language
English
Description
How has the Earth managed to stay within a moderate range of temperatures for billions of years, despite the atmosphere's wild fluctuations in oxygen? Study how convection, greenhouse gases, and the carbon rock cycle contribute to a powerful system of checks and balances that keep Earth's climate consistent with supporting life. Also, meet some of Earth's earliest life.
Pub. Date
2023.
Language
English
Description
Discover that Mars is a water world whose surface dried up long ago and may once have supported life. Four robotic rovers have landed on Mars, including the sophisticated Curiosity rover, now crawling across the planet searching for clues connected to microbial life forms.
Pub. Date
2017.
Language
English
Description
Witnessing a meteor fall must have been a strange and awe-inspiring experience for people long ago. Travel around the world to places where meteorites were worshiped and also used as a source of iron, which was rarer than gold before the smelting technology of the Iron Age.
Pub. Date
2015.
Language
English
Description
Join the quest for life on exoplanets, focusing on the search for extraterrestrial intelligence (SETI)-a hunt for signals from alien civilizations inspired by a landmark paper in 1959. See how the famous Drake equation points to factors that determine how many such civilizations may exist..
Pub. Date
2015.
Language
English
Description
Peer into the future at ambitious projects that may one day succeed in collecting light directly from an Earth-sized planet in the habitable zone of a nearby star. Examine three different engineering approaches: the coronagraph, interferometer, and starshade..
Pub. Date
2015.
Language
English
Description
Learn about the exciting mission of exoplanetary science-the study of planets orbiting stars beyond the Sun. Review the eight planets in our solar system, which provide a baseline for understanding the more than 1,000 worlds recently discovered in our region of the Milky Way galaxy..
Pub. Date
2013.
Language
English
Description
Now that you've seen why humanity will eventually have to leave Earth, consider astronomers' next steps, challenges, and planned missions. Examine why specialized optical systems called coronagraphs are necessary to detect habitable Earths, and how the use of direct imaging spectra is crucial to identifying whether the biomarkers of life are present on other worlds.
Pub. Date
2013.
Language
English
Description
Is there life in our universe? As you get an overview of the course - including the five major questions it will endeavor to answer - consider the possibility that life exists in some form in the cosmos. Learn how exponential growth in technological developments is enabling breakthroughs that were recently impossible.
Pub. Date
2015.
Language
English
Description
See how data from the Kepler spacecraft confirms a scenario straight out of the movie Star Wars: a planet with two suns. Investigate the tricky orbital mechanics of these systems. A double star also complicates the heating and cooling cycle on a planet. However, the view is spectacular!.
Pub. Date
2017.
Language
English
Description
Even on the clearest, darkest night you cannot see more than five percent of the light from our home galaxy, the Milky Way, because of the blockage of light by dust. Fortunately, the 20th century brought us radio astronomy, the study of radio waves that travel through the dust, opening our "eyes" to a universe we had never imagined.
95) Radio Astronomy
Pub. Date
2017.
Language
English
Description
Radio astronomy allows us to more accurately tell time right here on Earth, study terrestrial plate tectonics, and even get smartphone directions to that great new restaurant. Radio Astronomy: Observing the Invisible Universe takes you on a thrilling journey through the universe with stunning visuals and animations to explain the science of radio astronomy and its astounding discoveries.
Pub. Date
2017.
Language
English
Description
Consider the astronomy-based world views of different ancient cultures and how they answered the three big questions: Where did the world come from? What is the nature of the universe? What is its fate? Survey the beliefs of the Greeks, Chinese, Australian aborigines, and other groups, seeking common elements.
Pub. Date
2015.
Language
English
Description
Explore two other indirect approaches for finding exoplanets: first, by measuring the Doppler shift in the color of a star due to the pull of an unseen orbiting planet; and second, by measuring the tiny drop in the brightness of a star as a planet transits in front of it..
Pub. Date
2015.
Language
English
Description
The success of exoplanetary science has spurred a wave of new projects to increase our knowledge of worlds beyond our solar system. Survey ground- and space-based programs that are now in the works. Professor Winn gives a preview of a space mission that he and his MIT colleagues are designing..
Pub. Date
2017.
Language
English
Description
Study the constellation patterns of ancient China, which influenced those of India and Arabia. Professor Schaefer dates the origin of the Chinese star groups called lunar lodges, and he samples southern constellations conceived by cultures in South America, and Australia.
Pub. Date
2017.
Language
English
Description
Finish the course by seeing how ancient records of eFilmclipses and supernova explosions have refined our modern understanding of Earth-Moon dynamics and stellar processes - proving that today's cutting-edge astrophysicists owe a great debt to astronomers who watched the skies long ago.
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