The primary purpose of gezegde

 The primary purpose of the Stardust mission was to collect comet dust, the most basic material of the solar system, and bring it back to Earth for study.

 These will be the very first contemporary interstellar dust grains ever brought back to Earth for study. Stardust is not only the first mission to return samples from a comet, it is the first sample return mission from the galaxy.

 We did this mission to collect the most primitive materials we could in the solar system. We went to a comet that formed at the edge of the solar system, far from the sun under very cold conditions. We're confident that it was made out of the initial building blocks of our solar system.

 Virtually all of the atoms in our bodies and in the Earth were in interstellar grains - stardust grains - before the solar system formed. We're using this comet as a library that picked up records of the formation of our solar system, and has been storing them far from the sun at very low temperatures for four and a half billion years.

 Each year we have 30 to 40,000 tons of primitive material from comets and asteroids that lands on Earth, and this is about one particle per square meter per day. So during the course of our seven-year mission, there was more comet dust collected in your backyard than what we're bringing home.

 In recent decades, spacecraft have passed fairly close to comets and provided us with excellent data. Stardust, however, marks the first time that we have ever collected samples from a comet and brought them back to Earth for study.

 These are literally the building blocks of our planetary system. All of the atoms in our bodies - the carbon atoms, the oxygen, the nitrogen, potassium, calcium and so forth - all of those atoms were in stardust grains like those coming out of the comet now before the solar system formed.

 The Stardust project has delivered to the international science community material that has been unaltered since the formation of our solar system.

 Stardust is still very healthy and has fuel left over. After dropping the Space Return Canister, the spacecraft was diverted from entering the Earth's atmosphere and placed in an orbit around the sun that could bring it to another comet in February 2011.

 This comet formed at very edge of the solar system ... out by pluto ... and spent all its lifetime out there until recently it came into the inner part of the solar system, where we could sample it.

 Our mission is called Stardust, in part because we believe some of the particles in the comet will, in fact, be older than the sun.

 The fundamental reason for this mission is that we are collecting what we believe are the best preserved samples of the formation of our solar system and they are preserved because they formed these comet bodies beyond the major planets out beyond Neptune.

 We are absolutely delighted by the successful recovery of the Stardust samples. Years of planning, preparation and teamwork paid off handsomely this morning. We're very proud to have played a role in another of NASA's exciting voyages of exploration and look forward to learning what Stardust will tell us about the origins of our solar system.

 This is the first reconnaissance mission of this region of the solar system. It's the only one of the nine planets that hasn't been explored, so this can complete the inventory of the solar system.

 This was our first view of the comet dust. We are the first people in the history of the planet to see comet dust.


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Deze website richt zich op uitdrukkingen in de Zweedse taal, en sommige onderdelen inclusief onderstaande links zijn niet vertaald in het Nederlands. Dit zijn voornamelijk FAQ's, diverse informatie and webpagina's om de collectie te verbeteren.


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