Liftoff of Falcon 9 and Dragon from Launch Complex 40 in Cape Canaveral, Fl. March 1, 2013.

As 2015 comes to a close we look back at an exciting year of reaching new heights and revealing the unknown for the benefit of humankind.

NASA's Space shuttle last mission lift off. Shuttle Endeavour went to space for the last time on May 16th, 2011 at 8:56 AM EDT. By Wednesday May 18th they will have reached the space station and their return back after a 16 day mission is expected by early June, 2011

A Soyruz rocket launched NASA's Scott Kelly and two Russian cosmonauts into space for what will be a year-long mission aboard the International Space Station. It is NASA's first-of-its-kind study of identical twins to learn more about how long-term spaceflight affects the human body — by sending one

Scott Kelly and his twin brother, Mark Kelly—also an astronaut—were the subjects of the study that sought to find out exactly what happens to the body after a year in space. Scott stayed on the International Space Station from March 2015 to March 2016, while Mark remained on Earth. This was the fina

The SpaceX Dragon capsule is grappled and berthed to the Earth-facing port of the International Space Station's Harmony module at 12:02 p.m. EDT, May 25, 2012.

A revised version of David Bowie's Space Oddity, recorded by Commander Chris Hadfield on board the International Space Station. With thanks to Emm Gryner, Joe Corcoran, Andrew Tidby and Evan Hadfield for all their hard work.

NASA's New Horizons spacecraft has begun beaming back photographs of the surface of Pluto as it approaches the dwarf planet. . Report by Conor Mcnally.

You will notice that an orbit was not actually created, merely shot the crew into space, separated from the engine that could save them and left them to or themselves come re-entry. This video demonstrates the true awesomeness that is the Falcon Heavy. Just look at it!!!

Welcome to Space! This presentation includes 14 space tourism travel posters which were created by artists working with scientists at NASA's Jet Propulsion Laboratory as part of its "Visions of the Future" series.