Scientists are working on launching a huge helium-filled balloon loaded with a telescope and other gear to get a closer look at the ISON comet when it passes by in the fall. The Balloon Rapid Response for ISON is the only way researchers will be able to study the comet up close. "There are space telescopes, but none of them happen to be in the right place at the right time ... and there isn't enough time to build something new. With a balloon, it's doable," said BRRISON principal investigator Andrew Cheng.
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