ASTA01 ASS 2.doc

4 Pages
Unlock Document

University of Toronto Scarborough
Economics for Management Studies
Victor Yu

Planet Density (g/cm3) Mercury 5.43 Venus 5.20 Earth 5.52 Mars 3.93 Jupiter 1.33 Saturn 0.69 Uranus 1.27 Kepler 11B 1.91 Kepler 11D 1.41 Kepler 11G 35.98 STARDUST Spacecraft Mission: Comet Wild 2 th In the Utah desert of January 15 , 2006, a 1 m capule parachuted safety and caused a green fireball to shoot across the sky of West USA at 3am of the same day. The capsule the STARDUST sample return capsule from NASA`s STARDUST mission launched on February 7 , 1999. The space mission had completed a 7 year (5 billion km) journey to Comet Wild 2 and returned to Earth. The STARDUST mission retrieved comet and interstellar dust particles which allowed NASA to learn about the composition of comets. For a long time, the human spectacle assumed comets as balls of ice as nomads in space. The STARDUST mission was the first U.S mission with the sole purpose of cometary research. It also became the first mission which returned with a sample of extraterrestrial material from outside the orbit of the Moon. Comet Wild 2 was named after and discovered by astronomer Paul Wild in 1978. Comet Wild 2 commenced 4.57 billion years ago in the earliest stages of the Solar System; at the time which rock, metallic and icy components formed our planets and began to condense. Most of the ices of water, ammonia, carbon dioxide and carbon monoxide became part of gas giant planets and condensed in the cold outer parts of the Solar System. However some of the ices remained as planetesimals, solid bodies sized 1- 10 km. As such gas giant planets formed, early comets began to disperse as such gas giant planets formed their immense gravity. Oort clouds were formed as comets dispersed and surrounded the Solar System at its furthest reaches. However, such Oort clouds of comets had massively long orbital periods which caused their passages difficult to predict and therefore was not useful for the Stardust mission. Comets with shorter orbital periods lie within Neptune’s orbit of the Kuiper Belt. Comet Wild 2 was found in the Kuiper Belt until 1974 until which it passed close to Jupiter, resulting it be
More Less

Related notes for MGEB11H3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.