And then there were three.

On the forty-seventh anniversary of Sputnik, on the day that the Ansari Prize was won, astronaut Gordon Cooper, one of the original Mercury Seven, has died. Of those seven, only Scott Carpenter, John Glenn, and Wally Schirra remain with us.

Of course, he was not an uncontroversial astronaut:

In his post-NASA career, Cooper became known as an outspoken believer in UFOs and charged that the government was covering up its knowledge of extraterrestrial activity.

“I believe that these extraterrestrial vehicles and their crews are visiting this planet from other planets, which obviously are a little more technically advanced than we are here on Earth,” he told a United Nations panel in 1985.

“I feel that we need to have a top-level, coordinated program to scientifically collect and analyze data from all over the Earth concerning any type of encounter, and to determine how best to interface with these visitors in a friendly fashion.”

He added, “For many years I have lived with a secret, in a secrecy imposed on all specialists and astronauts. I can now reveal that every day, in the USA, our radar instruments capture objects of form and composition unknown to us.”

Nonetheless, he was a hell of a pilot. Rest in peace in the cosmos.