Lunar eclipse Wed. Oct. 8 /detroit /detroit .
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Transcript of Lunar eclipse Wed. Oct. 8 /detroit /detroit .
Lunar eclipseLunar eclipseWed. Oct. 8Wed. Oct. 8
http://www.timeanddate.com/eclipse/in/usa/detroit
SPACE ROCKSSPACE ROCKSpages 595-599pages 595-599
Coming to a planet near you….Coming to a planet near you….
Comet fun!Comet fun!
http://www.windows.ucar.edu/tour/link=/comets/comet_model_interactive.html
CometsComets Made of rock, ices Made of rock, ices
and tars and tars Snowy dirtballsSnowy dirtballs Two tails: 1)made Two tails: 1)made
of gases (straight, of gases (straight, dim) and 2)rocks dim) and 2)rocks (curved, bright)(curved, bright)
Tails only seen Tails only seen when close to sunwhen close to sun
Coma- “head” of Coma- “head” of cometcomet
Comet HalleyComet Halley
Perihelion 2062Perihelion 2062 Last seen in 1986Last seen in 1986 Seen every 76 yearsSeen every 76 years
Hale-BoppHale-Bopp19971997
Comet Kohoutek. Comet Kohoutek. NASANASA
Comet Siding SpringsComet Siding Springs
http://mars.nasa.gov/comets/sidingspring/
The Oort CloudThe Oort Cloud
Forms a spherical Forms a spherical shell around solar shell around solar systemsystem
Home to long Home to long period cometsperiod comets
> 200 years> 200 years
The Kuiper BeltThe Kuiper Belt
Home to short-Home to short-period comets period comets
< 200years< 200years
Orbit on the same Orbit on the same plane as planetsplane as planets
Donut shapedDonut shaped
Stardust missionStardust mission
Landed on a cometLanded on a cometBrought sample back to earth!Brought sample back to earth!
StardustStardust StardustStardust rendezvoused rendezvoused
with Comet Wild 2 on with Comet Wild 2 on January 2, 2004.January 2, 2004.
StardustStardust uses uses aerogelaerogel to collect and trap to collect and trap comet and solar wind comet and solar wind particles.particles.
Stardust Sample ReturnStardust Sample Return
The sample landed in the The sample landed in the Utah desert January 15, Utah desert January 15, 2006.2006.
Only sample return Only sample return mission expect Apollomission expect Apollo
Found water and carbonFound water and carbon
Making aMaking a Deep Deep ImpactImpact The mission will The mission will
blow a football-blow a football-field sized crater field sized crater
( 7 stories deep) in ( 7 stories deep) in Comet Tempel 1 Comet Tempel 1 on July 4, 2005.on July 4, 2005.
This will be our This will be our first look at the first look at the fresh inside fresh inside layers of a comet.layers of a comet.
Found water iceFound water ice
What Kind of Impact ?What Kind of Impact ? 370 kg Copper impactor 370 kg Copper impactor
(816 lbs.).(816 lbs.). Impact speed – 10.2 km/sImpact speed – 10.2 km/s Energy released – 18 Energy released – 18
gigajoules = (4.5 tons of gigajoules = (4.5 tons of TNT).TNT).
Impactor must hit an area Impactor must hit an area less than 6 km (3.7 miles) in less than 6 km (3.7 miles) in diameter from about 864,000 diameter from about 864,000 km (536,865 miles) away. km (536,865 miles) away.
Let’s take a look-Let’s take a look-
Deep Impact missionDeep Impact mission
Impacted a cometImpacted a cometBaby step in destroying space rocksBaby step in destroying space rocks
Left over planet Left over planet materialsmaterials
Rock materialRock material
From Galileo
Must be IN SPACEMust be IN SPACE Most are smallMost are small
A meteoroid burning up A meteoroid burning up in the atmospherein the atmosphere
When many are burning= When many are burning= meteor showermeteor shower
Hits earthHits earth
Three Groups:Three Groups: Stony (chondrite)- rock Stony (chondrite)- rock
likelike
Iron- metallic appearanceIron- metallic appearance
Stony-Iron- both!Stony-Iron- both!
Russia meteorite 2/15/13Russia meteorite 2/15/13
Meteor crater, AZMeteor crater, AZ
Meteor craterMeteor craterwhy are craters rare on Earth?why are craters rare on Earth?
Craters are rare on Earth Craters are rare on Earth because….because….
Atmosphere burns them upAtmosphere burns them up
They get eroded awayThey get eroded away
ASU meteorite labASU meteorite lab
Smithsonian meteoritesSmithsonian meteorites
Worden MeteoriteWorden Meteorite
Fell in 1997 in Ann Fell in 1997 in Ann ArborArbor
Through a garageThrough a garage 1550 grams1550 grams
Titicaca CraterTiticaca CraterSept. 15, 2007Sept. 15, 2007
Titicaca meteoriteTiticaca meteoritechondritechondrite
NASA - Asteroid Will Miss In 2019 - NASA - Asteroid Will Miss In 2019 -
End Of World On Hold End Of World On Hold The announcement that 2019 is a non-starter The announcement that 2019 is a non-starter
was made after further observations by NASA's was made after further observations by NASA's Near-Earth Objects Office. But they said a Near-Earth Objects Office. But they said a remote chance remained that the two-kilometre-remote chance remained that the two-kilometre-wide space rock, known as 2002 NT7, could wide space rock, known as 2002 NT7, could crash into our planet in 2060. Astronomers crash into our planet in 2060. Astronomers initially spotted the asteroid on 5 July, through initially spotted the asteroid on 5 July, through the Linear Observatory's automated sky survey the Linear Observatory's automated sky survey programme in New Mexico, and early programme in New Mexico, and early calculations showed it was due to hit our planet calculations showed it was due to hit our planet on 1 February, 2019. on 1 February, 2019.
NEO’SNEO’S
Near Earth ObjectsNear Earth Objects
http://www.spaceweather.com/