1 / 19

Astronomy 100

Astronomy 100. Comparative Planetology Mercury, Venus, Earth, Moon, Mars. Now: How are planets formed? Why does Earth have water? How do rocks form?

hollon
Download Presentation

Astronomy 100

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Astronomy 100 Comparative Planetology Mercury, Venus, Earth, Moon, Mars

  2. Now: How are planets formed? Why does Earth have water? How do rocks form? • Main concepts: solar system formation, comparative planetology, Moon formation hypotheses, cratering, plate tectonics, volcanism, earthquakes, atmosphere, solar wind/auroras, • Vocabulary: protoplanetary disk, crater, Heavy Bombardment, cratering, atmosphere, mantle, differentiation, plastic, greenhouse effect, albedo, ejecta, rays, solar wind, auroras

  3. Formation of the Solar System • The Solar Nebula was spinning • Protostar • Protoplanetary disk • Bits coalesced • Ta-da – planets! • NOW: • String represents 5 billion years (50 feet) • Each foot is 100 million years. • Place the events in order. • You have 20 minutes ONLY

  4. Heavy Bombardment

  5. Differentiation • http://www.youtube.com/watch?v=Ss1FNrNTGRM Robert Simpson http://farm4.static.flickr.com/3160/2946389087_57dfbb682e_b.jpg

  6. Crust • Mantle • Core • Plastic From: NASA http://www.nasa.gov/worldbook/wbkids/k_earth_prt.htm

  7. Fission, Capture, Condensation, Giant Impact? Starchild/NASA http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question38.html

  8. Crater, ejecta, rays, albedo NASA http://craters.gsfc.nasa.gov/crater_diagram.html

  9. http://messenger.jhuapl.edu/ Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

  10. http://messenger.jhuapl.edu/ Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

  11. http://messenger.jhuapl.edu/ Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

  12. Comparative Volcanoes

  13. Volcanoes • Composite • Shield http://mars.jpl.nasa.gov/gallery/atlas/images/oly-az.jpg http://svs.gsfc.nasa.gov/stories/Landsat_USCities/images/mt_rainier_natural.jpg

  14. Plate Tectonics http://marsweb.jpl.nasa.gov/mgs/mission/images/PIA02820_mola.jpg

  15. Martian North Pole and Terrestrial (Earth) South Pole • Describe three things that are the same about the landforms. • Describe three things that are different about the landforms. • Why do both planets have ice caps? • Why are the ice caps different sizes? • Valles Majas & the Grand Canyon • Describe three things that are the same about the landforms. • Describe three things that are different about the landforms. • What force do you think formed the Grand Canyon? • What force do you think formed Valles Majas? • Do you think it is the same force? Why or why not? How do your observations support this conclusion? • Olympus Mons and the Hawai’ian Islands • Using the contour gauge, trace the profile of both Olympus Mons and Hawai’i. Draw your guess for what the internal structure might look like inside both volcanoes.

  16. Weathering/Protection • Water • Atmosphere • Greenhouse effect • Solar wind

  17. Answer Now: Why do the Moon and Mercury have more craters than the Earth? What types of planets are there in our Solar System?

  18. Now: How many other worlds have humans walked on? How many “planets” have we “explored?” Main concepts: Mercury missions past and future Venus missions past and future Moon missions past and future Mars missions past and future Vocabulary: Apollo, MER, Altair, Constellation, Venera, MESSENGER

  19. Answer Now: • Why do the Moon and Mercury have more craters than the Earth? • What types of planets are there in our Solar System?

More Related