400
What is a piece of evidence that supports the following statement: "Wild 2 is like no comet we have ever seen before"?
"the comet has proven to be very different, in fact wild"
OR
"Scientists thought Wild 2 would be a dirty, black, fluffy ball. Were they ever surprised! Instead, results from the Stardust flyby show the Wild 2 to have a rigid surface that supports towering cliffs and peaks 328 feet tall"
OR
". This comet has not had a chance to change very much from its original condition 4.5 billion years ago. It holds great interest for scientists."