Zackery Harris, Daniel Buennostro, Chris Hiltzman
Atmosphere of Venus
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The atmosphere of Venus is very thick and is
about 90 times more massive than Earth's
atmosphere. It is mostly carbon dioxide gas (about
96%), with some nitrogen (about 3%) and a very
small amount of water vapor (0.003%). Venus also
has a thick layer of sulfuric acid clouds.
Missions to Venus
Venera 1-16 (USSR, 1960s through
1980s)
 Pioneer Venus 12 and 13 (NASA, 1978)
 Mariners 1,5, and 10 (NASA, 1960s
through 1970s)
 Magellan (NASA, 1989)
 Galileo (NASA, 1990)
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Mission Goals (USSR and NASA)
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USSR
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NASA
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Venera (Probe, Lander,
and Orbiter)
To land on Venus to send
pictures.
Come as close as
possible
Find out the info for its
orbit and rotation time
and revolution time.
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Pioneer Venus’s (Orbiter
and Atmospheric Probe)
Took atmospheric photos
and watched the planet
Mariners (Fly-bys)
Getting as close as
possible to see surface.
Magellan and Galileo (Flyby and Orbiter)\
Radar mapping and heat
signature images were
taken.
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Surface Features of Venus
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The surface of Venus is rather smooth in many
places, though not nearly as smooth as originally
expected . However, we find evidence for many of
the same geological features found on Earth:
canyons, volcanoes, lava flows, rift valleys,
mountains, craters, and plains.
Image of a rift valley
on Venus surface
Basic Information
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Venus orbits every 224.7 Earth days.
Venus has no natural satellite.
Average tempature is 462 Celsius degrees.
Named after the Roman goddess of love and
beauty, Venus. (Aphrodite in Greek)
Venus is a terrestrial planet, basically it's
known as Earth's "sister planet" because of
the similiar size, mass, and density.
It's atmosphere is 96% carbon dioxide.
It is the 2nd brightest object in the night sky
with a apparent magnitude of -4.6, bright
enough to cast a shadow! (Moon is first)
Fun Facts!
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First Record: 17th century BC
Recorded By: Babylonian astronomers
Venus is also known as the Morning Star and the Evening
Star.
Venus is the hottest planet in our solar system.
The Russians sent the first mission to Venus.
At one point it was thought Venus might be a tropical
paradise!
Size comparison
between Earth and
Venus
History of Venus
The early mathematician Pythagoras
was one of the first to recognize that the
morning and evening stars were actually
the same object: Venus. So perhaps he
was the first to “discover Venus”.
 The Maya civilization held Venus in high
regard, and the planet figured
prominently in their religious calendar.
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Questions
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Which of the planets experiences a
runaway greenhouse effect?
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Kepler’s first law states that planets orbit
the sun in paths called..?
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The two inner planets that most alike in
size, mass, and density are..?
Answers
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Venus contains a extreme amount of the
greenhouse gas, carbon dioxide.
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Law of Ellipses. They travel in these
oval like shapes called ellipses.
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Venus and Earth are most alike in size,
mass, and density.
Galleria