In Pictures: Derby Day devotees, Kenyan style
Photos of the Day: Photos of the day 05/16
In Pictures: Dazzle like Beckham
In Pictures: Weather extremes 2013
Photos of the Day: Photos of the day 05/15
In Pictures: Duchess Kate's royal baby bump
Photos of the Day: Photos of the day 05/14
In Pictures: Keffiyeh is rebel chic
This undated artist's rendition shows the Falcon Hypersonic Technology Vehicle 2 (HTV-2), an unmanned, rocket-launched, maneuverable aircraft that glides through the Earth’s atmosphere at Mach 20 (approximately 13,000 miles per hour), designed by the military research group DARPA (Defense Advanced Research Projects Agency). DARPA/AP/File
The Falcon Hypersonic Technology Vehicle 2 (HTV-2) separates from the rocket in this undated artist's rendition. The hypersonic glider is scheduled for launch atop a Minotaur rocket on Aug. 11 from Vandenberg Air Force Base, Calif. DARPA/AP/File
An Air Force F-22 Raptor executes a supersonic flyby in the Gulf of Alaska on June 22, 2009. Supersonic speed exceeds the speed of sound (Mach 1, or 768 mph). Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Ronald Dejarnett/US Navy/AP/File
An F/A-18 Super Hornet from the aircraft carrier USS Carl Vinson slips through the sound barrier during a flight demonstration for Peruvian visitors on March 27, 2010. Adrian White/US Navy/AP/File
An X-51A Waverider rides under the wing of a B-52 Stratofortress on Dec. 9, 2008. A similar X-51A successfully launched from a B-52 Stratofortress on May 26, 2010. The Rocketdyne-built air breathing scramjet engine accelerated the vehicle to Mach 6. Mike Cassidy/US Air Force/AP/File
The US Navy's Navy Flight Demonstration Squadron, popularly known as the Blue Angels, was formed in 1946 and is currently the oldest formal flying aerobatic team. The squadron's six demonstration pilots currently fly the supersonic F/A-18 Hornet in more than 70 shows at 34 locations throughout the US each year. Harry Eggens/Solent News/Splash News/Newscom/File
The first US Navy version of the supersonic F-35 Lightning ll climbs skyward on its inaugural flight out of Naval Air Station Fort Worth Joint Reserve Base on June 6, 2010. Tom Harvey/PRNewsFoto/Lockheed Martin Aeronautics Company
Air France Concorde AF002 takes off from Roissy airport, near Paris, on Nov. 7, 2001. The supersonic passenger airplane flown by Air France and British Airways was retired in 2003 as a result of a crash on July 25, 2000, low passenger numbers resulting from the crash, and high maintenance costs. Charles Platiau/Reuters/File
The Tupolev Tu-144 supersonic jumbo jet was introduced into passenger service in 1977. In 1978, a Tu-144 crashed, and the passenger fleet was permanently grounded after only 55 scheduled flights. The aircraft remained in use as a cargo plane until 1983. The Tu-144 was later used by the Soviet space program to train pilots of the Buran spacecraft, and by NASA for supersonic research. Polikashin/RIA Novosti/Newscom/File
The Lockheed SR-71 'Blackbird' was an advanced, long-range, Mach 3+ strategic reconnaissance aircraft that served with the US Air Force from 1964 to 1998. Although 12 of the 32 aircraft built were destroyed in accidents, none was lost to enemy action. Since 1976, it has held the world record for the fastest air-breathing manned aircraft, a record previously held by the YF-12. US Air Force/File
The Lockheed YF-12 was an American prototype interceptor aircraft which first flew on Aug. 7, 1963. Its maximum speed was Mach 3.35 (2,275 mph). Due to Vietnam War costs and updated intelligence that placed a lower priority on defense of the continental US, the program was ended in 1968. But the USAF and NASA continued to use YF-12s as research aircraft. Newscom/File
The American Northrop T-38 Talon was the world's first twin-engine supersonic jet trainer. The first production examples were delivered in 1961. It is used by air forces all over the world. Purestock/Newscom/File
In Pictures: Derby Day devotees, Kenyan style
Photos of the Day: Photos of the day 05/16
In Pictures: Dazzle like Beckham
In Pictures: Weather extremes 2013
Photos of the Day: Photos of the day 05/15
In Pictures: Duchess Kate's royal baby bump
Photos of the Day: Photos of the day 05/14
In Pictures: Keffiyeh is rebel chic
A new OAS report looks at alternatives to prohibiting the drug trade, including legal market regulation, reform of the UN drug convention, and smarter policing.
In the global fight against drug trafficking, it’s high time countries experiment with “nontraditional” approaches.
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