Free Mars Exploration Rover 10-Year Anniversary Event Tonight

The public is invited to share, either in person or online, in a 10-year anniversary event for the Mars Exploration Rovers (MER), Spirit and Opportunity, tonight at 7 p.m. PST (10 p.m. EST). The event, hosted by NASA's Jet Propulsion Laboratory, Pasadena, Calif., is being held in the Beckman Auditorium on the California Institute of Technology campus, 1200 E. California Blvd., Pasadena. Admission is free and is on a first-come, first-served basis.

NASA's twin rovers launched separately in 2003 and landed three weeks apart in January 2004. They completed their three-month prime missions in April 2004 and went on to perform extended missions for years. Spirit and Opportunity made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life. Although Spirit ceased communicating with Earth in March 2010, the Opportunity rover continues its work on the Red Planet.

F-22 Raptor

The F-22 is probably the best known fighter-jet in the world and its fame and reliability means that it comes at a pretty high price tag. At just over $211 million it’s the most expensive fighter jet in the world, but that hasn’t put the US army off – they have a fleet of 188 F-22s at a total cost of $79.2 billion.

Air-Elf Aircraft

 Air-Elf aircraft concept is to solve road congestion. The core of the concept is a new type of wing, “Air Caterpillar”. It can be transformed in order to meet the needs of flexibility and speed of the aircraft. Air-Elf aircraft not only can take off and land vertically, but also is able to perform high-speed cruising. In addition, Air-Elf is equipped with smooth aerodynamic appearance, clean and efficient hydrogen energy power system, solid frame, to facilitate safe and comfortable cockpit and baggage compartment.
Air Caterpillar” wings consist of a main structure and many small wings. These small wings can move horizontally and circularly to provide lifting force constantly. “Air caterpillar” wings are highly transformable to meet the parking, vertical takeoff and landing, high-speed cruising requirements.