From the New York Times: "A newly approved drug to treat Alzheimer’s disease is expected to become a multibillion-dollar expense for Medicare. By one projection, spending on the drug for Medicare’s patients could end up being more than NASA."

Okay, so what if it is? According to google, 5.8 Million Americans have Alzheimer's. I'm quite certain they would benefit more from a drug than pictures of mars or collecting space dust.