Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) NASA is sending a space probe to chase down a dark, potentially dangerous asteroid. The probe will take a sample of the asteroid and -- in a US space first -- bring the sample back to Earth. "This is a dark asteroid that we have found and we're going to hunt down, we're going to orbit, we're going to take a good look at it and we're going to bring back a sample," Jim Green, director of NASA's Planetary Science Division, said at a news briefing on August 17. If you're thinking this sounds a bit like the plot from the 1998 sci-fi flick "Armageddon" you would be right, but without Bruce Willis (there won't be any people on this spacecraft) and without space shuttles (NASA retired the shuttles in 2011).NASA is launching a space probe to catch up to an asteroidOSIRIS-REx will bring back a sample of asteroid Bennu 
 Question:But _ said that, as of right now, no agency has a plan to stop an asteroid or comet from hitting Earth.
Output:
NASA