Astronaut limit water use to only about three gallons (11 liters) per day. In Russia, cosmonauts are awarded Pilot-Cosmonaut of the Russian Federation upon completion of their missions, often accompanied with the award of Hero of the Russian Federation. This follows the practice established in the USSR where cosmonauts were usually awarded the title Hero of the Soviet Union. At NASA, those who complete astronaut candidate training receive a silver lapel pin. Once they have flown in space, they receive a gold pin. U.S. astronauts who also have active-duty military status receive a special qualification badge, known as the Astronaut Badge,
Chinese as a foreign language were studying the language in US colleges and universities. While far behind the more than 800,000 students who study Spanish, the number is more than three times higher than in 1986. The Institute's report includes graphs and details on the popularity of other languages. As of 2008, China had helped 60,000 teachers promote its language internationally, and an estimated 40 million people were studying Chinese as a second language around the world. Other than Standard Mandarin, Cantonese is the only other variant of Chinese that is widely taught as a foreign language. It is the official language of Hong Kong