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on 18 November 2013

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Transcript of Mercury

The spacecraft Messenger shows a part of Mercury never seen before by human eyes.
Mercury Symbol
Planet Appearance
Surface like moon
Very thin atmosphere ---> Impact crates caused by meteoroids
Few flat surfaces
Many hills and scarps (line of cliffs)
The symbol of Mercury represents the ancient alchemical symbol of mercury (Hg) and is the female symbol with horns.
No rings and no moons
A picture showing the surface of Mercury taken by the Messenger while flying over
Mercury is named for the Roman god Mercury
God of commerce, trade, thieves, messengers
Greek counterpart is Hermes
The Roman God Mercury is depicted with his cadacus, symbol of doctors and patrons
Discovered by ancient people
Unknown discovery date
Looked at the night sky
Unknown place where discovered
Discovery of Mercury
First planet, the closest
From the sun: .387 AU which is 5.79 x 10 x 7 km
To Earth: .613 which is 7 x 10 x 6 km
Planet Measurements
Mass: 3.30104 x 10 x 23 kg
Volume: 6.0827208742 x 10 x 10 km3
E.C.: 9525.1 miles
Average Density: 5.427 g/cm3
Gravity: Metric: 3.7 m/s2
English: 12.1 ft/s2
Smallest planet
All of the planets are drawn to scale based on size but not distance
The Earth and Mercury are drawn to scale to compare sizes
Orbit and Rotation
88 days to orbit
Perihelion (closest point): 4.6 10x7 km- 2.8 x 10x6 miles
Aphelion (furthest point): 6.98 10x7 km- 4.3 10x6 miles
A day on mercury = 58.646 Earth days
Core - 42% of Mercury
Molten Core
Metallic/high in iron
Surface - 300 km thick
very rocky and uneven
buckles and scarfs
Buckles and scarfs are evidence that Mercury shrunk in the past.
A picture displaying the planet Mercury's molten core and rocky surface
Almost no atmosphere
Major Gases: hydrogen and helium
Minor Gases: oxygen, sodium, potassium, calcium, magnesium, iron
A picture of the harsh enviroment of Mars and a demonstration of an enviroment with little atmosphere
Wind Speeds: No wind only solar
Temperature Ranges: 800F to -300F
Surface Pressure: 10 to the negative 14 power bar
Surface Conditions
Thermal Imaging shows the difference in temperature on the planet Mercury
A diagram showing the orbit of Mercury around the Sun
Mariner 10: November 3, 1973
MESSENGER: August 3, 2004
Bepicolombo: Begins 2020 Ends 2029
The probe MESSENGER explores the surface of Mercury
Future Human Travel/Habitability
Artist's rendering of future travel to Mercury and Mars
Extreme temperatures = burn up or freeze
Strong Solar Winds = no communications, burn up
Low oxygen = unable to breathe
Low water = dehydrate
Barren Landscape = no supplies
Necessities for Human Life on Mercury
"Solar Shields" to block winds
Apparatus to provide oxygen or air
Protection from extreme temperatures
Reworking the earth to be able to grow crops
Provide water for human life and agriculture
NASA. "Solar System Exploration: Planets: Mercury: Overview." Solar System Exploration. United States Government. Web. 25 Apr. 2012. <http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mercury>.
NASA. "Solar System Exploration: Planets: Mercury: Overview." Solar System Exploration. United States Government. Web. 25 Apr. 2012. <http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mercury>.
"MercuryEnchantedLearning.com."302Found.Web.25Apr.2012.<http://enchantedlearning.com/subjects/astronomy/planets/ mercury/>.
Mercury in the night sky alongside Jupiter and Venus
"Mercury." National Geographic. Web. 26 Apr. 2012. <http://science.nationalgeographic.com/science/space/solar-system/mercury-article/>.
Major Gases-
Minor Gases-
Interesting Facts
-Mercury contains the most iron out of all the planets
-You can see the stars during the day on Mercury and the sky would look black.
-Sun's rays are seven times stronger
- You can only see Mercury right after sunrise and right before sunset.
- About three Mercury's can fit on Earth.
"Weather on Mercury." Universe Today. Web. 26 Apr. 2012. <http://www.universetoday.com/85348/weather-on-mercury/>.
"The Discovery of Water Ice on Mercury." Water Ice on Mercury. Web. 26 Apr. 2012. <http://www.nrao.edu/pr/2000/vla20/background/mercuryice/>.
The barren landscape of Mercury by the little atmosphere
A picture comparing the sizes of Earth and Mercury
"DISCOVERY ::: MISSIONS ::: MESSENGER." DISCOVERY ::: MAIN HOME PAGE ::: Welcome to Unlocking the Mysteries: NASA's Discovery Program. Web. 26 Apr. 2012. <http://discovery.nasa.gov/messenger.html>.
"Mrs. Loth's Science Paper
Weather and Water
Very different in day/night
No atmosphere to block heat
Close to the Sun
Day- up to 430 C
Night- from -183 C to -297.4 C
Ice may exist in craters

An image showing ice in a crater on Mercury
Mercury's Caloris Basin
Animated picture of Mercury.
Full transcript