I can show you the worlds The Science of Planetary Exploration
Anjali Tripathi Kirit Karkare Sukrit Ranjan Sun Solar System
Earth
Star Planets
Planets
Outline
• Anjali: Robotically Exploring the Solar System
• Kirit: Detecting Extrasolar Planets
• Sukrit: The Search for Life Beyond Earth I can show you the worlds How can we learn about the planets?
Anjali Tripathi Kirit Karkare Sukrit Ranjan The Naked Eye
Tunc Tenzel (TWAN/The World at Night) Telescopes
Wellcome Library
NASA/JPL Telescopes
Wellcome Library AIP
NASA/JPL 9 NASA/JPL Spacecraft! Spacecraft! Unmanned, or robotic missions
NASA//ESA/ASI Orbiter
• Allow us to get a Flyby closer view
• Get measurements in place Lander
SENSES in space
NASA/JPL VoyagerVoyager I & I &II II FlyingFlying by the by Gasthe GiantsOuter Solar System
Cosmic Ray Plasma
Imaging (WA/NA) Magnetometers
Photopolarimeter
Spectrometers (UV/IR) Golden Record Radio/Plasma Wave Antenna
Science Instruments
12 NASA/JPL VoyagerVoyager I & I &II II Flying by the Gas Giants
Sept ‘77 Aug ‘77
Aug ‘89
Mar ‘79 Jan ‘86 July ‘79
Nov ‘80 VOYAGER 1
Aug ‘81
NASA/JPL
Visited Jupiter, Saturn, Uranus & Neptune discovery: discoveries:
(neptune)
jupiter has rings more moons storms on neptune
3 - jupiter 3 - saturn 10 - uranus 6 - neptune
NASA/JPL February 14, 1990 4,000,000,000 miles away
NASA/JPL February 14, 1990 4,000,000,000 miles away
NASA/JPL Today - Still going! 10,000,000,000 miles away
Not fare well, But fare forward, Voyagers. -- T. S. Eliot, The Dry Salvages
NASA/JPL Cassini-Huygens Orbiting Saturn, Landing on Titan
NASA/ESA/ASI Cassini-Huygens Orbiting Saturn, Landing on Titan
NASA/ESA/ASI Cassini-HuygensOrbiting Saturn
NASA/JPL Sept. 15, 2006 NASA/JPL/Space Science Institute EARTH
You are here
Sept. 15, 2006 NASA/JPL/Space Science Institute discoveries about Saturn’s moons: Prometheus Enceladus
perturbs Saturn’s rings has icy jets
NASA/JPL/Space Science Institute Phoebe
Voyager II Sept. 4, 1981
1.3 million miles away
Cassini June 11, 2004 1200 miles away
NASA/ESA/ASI a view from the ultraviolet
water frost
Phoebe Saturn’s Moon NASA/ESA/ASI a view from the infrared - temperature
0 2.75 hours
Time
0.46 hours 3.16 hours day-night variation
0.91 hours
Phoebe Saturn’s Moon made of loose dust and ice particles NASA/ESA/ASI a view from the infrared - mineral distribution
Phoebe Saturn’s Moon originated in the Kuiper belt NASA/ESA/ASI Cassini-Huygens Landing on Titan
• Imager • Measure winds using radio • Analyze the atmosphere • Measure Titan’s surface
NASA/ESA/ASI descent unto Titan
Titan’s wind - the furthest sounds in the Solar System
NASA/ESA/ASI Titan has rain & flows of liquid methane
hills
drainage channels
pebbles
lakes
ESA/NASA/JPL/University of Arizona 29 NASA/JPL Gas giants
29 NASA/JPL Rocky planets
29 NASA/JPL Mars
Opportunity!
Spirit!
NASA Mars Exploration Rovers Roving a Rocky World
Remote Sensing Package Pancam Mini-TES
Magnetic properties In-Situ Package experiment Microscopic Imager Alpha Particle X-Ray Spectrometer Mössbauer Spectrometer Rock Abrasion Tool
NASA/JPL RAT hole water?
Spirit NASA/JPL/Cornell/USGS/U. Mainz water? blueberries Meridiani Rock and Soil Sample
need water to form sulphates and standing water
flows different, rippled layers Opportunity NASA/JPL/Cornell/MPI/U. Mainz coming soon... sample return Spacecraft help us sense
worlds like our own and wildly different worlds.
Voyager
Cassini Huygens Mars Rovers
Sunset on Mars Spirit Rover NASA/JPL/Texas A&M/Cornell May 19, 2005