planetary atmospheres

Solar System

MERCURY

MERCURY

VENUS

VENUS

MARS

MARS

JUPITER

JUPITER

SATURN

SATURN

URANUS

URANUS

NEPTUNE

NEPTUNE

Comparison of Atmospheres

Mercury and earth's atmosphere

• Not too similar
• Earth's is stable, not Mercury's
• Both contain more oxygen

Saturn and earth's atmosphere

• Also very different
• Barely any nitrogen in Saturn's, 78% in Earth's
• Saturn's Atmosphere - more clouds

Discovery of earth's atmosphere

• Mid 1600s - Proved existence of air pressure (Multiple scientists)
• 1660 - Robert Boyle invented barometer
• 1674 - Gas in atmosphere supported life (John Mayow)
• 1774 - Identified oxygen's properties (Joseph Priestley)

THE compisition of our atmosphere

• Dry air: 78% Nitrogen, 21% Oxygen, other traces of gases
• Water Vapor: About 0.25%
• Salt, dust, etc.

IS THERE WATER ON THESE PLANETS?

is there water on these planets?

• Mercury - Water Vapor in atmosphere, meaning water/ice on planet
• Venus - Only 0.002% vapor found in atmosphere
• Mars - Small amounts of vapor, water may occur on planet

DO DWARF PLANETS HAVE ATMOSPHERES?

DO dwarf planets have atmospheres?

• Pluto - Thin atmosphere, expands when comes closer to Sun. Composed of Nitrogen, Methane, Carbon Monoxide
• Makemake - may develop atmosphere made of nitrogen when closest to Sun.

Do dawrf planets have atmospheres?

• Ceres - very thin atmosphere, evidence contains vapor. Vapor made by ice volcanoes or ice near surface sublimating

DO DAWRF PLANETS HAVE ATMOSPHERE?

• Eris - Atmosphere collapses and freezes because far from Sun, falls to surface as snow

Do dwarf planets have atmospheres

• Haumea - Scientists know little about atmosphere

Thank you for your time!