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Have Rocket, Will TravelOrbital ATK's Antares rocket first launched into space on April 21, 2013, marking a leap forward for American commercial spaceflight.
The unmanned Antares rocket blasted off from Virginia's Mid-Atlantic Regional Spaceport (MARS) located at NASA's Wallops Flight Facility, helping pave the way for eventual cargo missions to the International Space Station. At the time, Orbital had a $1.9 billion deal with NASA to fly eight unmanned supply missions using Antares and the company's robotic Cygnus spacecraft. Since then, the company has received a new contract for more cargo launches to the space station using its Antares/Cygnus combo.Here are five things you might not have known about Antares: FIRST STOP: Engines Made for the Moon
Originally Made for the MoonSlide 2 of 11
Originally Made for the MoonThe first version of Orbital ATK's Antares rocket use two Aerojet AJ26 rocket engines fueled by liquid oxygen and kerosene (RP-1) to power it's first stage. The AJ26 is based on the NK-33 engine, which was originally developed to launch Russia's giant N-1 moon rocket in the 1960s.
N-1 was the Soviet answer to America's Saturn V rocket, used to launch astronauts to the moon during the space agency's Apollo program. The Soviet heavy-lifting rocket, however, was never launched successfully.
On Oct. 28, 2014, however, an Antares rocket crashed and exploded during launch, and Orbital ATK traced the problem back to the AJ26 engines. The company has since replaced the engines with Russian-built RD-181 rocket engines.
Next: The largest rocketSlide 3 of 11
Virginia's Biggest RocketSlide 4 of 11
Virginia's Biggest RocketNASA's Wallops Flight Facility on Virginia's Eastern Shore has traditionally been a launching ground for small sounding rockets and high-altitude balloon missions, but Antares' missions from Pad-0A at the Mid-Atlantic Regional Spaceport (which is located at the Wallops facility) is helping broaden the site's scope.
Engineers refurbished an old launch pad to accommodate Antares. Most big manned and unmanned American missions have historically been run from Florida's Cape Canaveral, including the space station cargo launches of Orbital ATK's competitor, SpaceX.
Weather permitting, today's Antares launch could be seen as far south as Charleston, S.C. and as far north as Portland, Maine. The rocket should be visible as a bright streak of light in Washington, D.C., assuming clouds doesn't get in the way.
Next: Space legacySlide 5 of 11
A Space Name LegacySlide 6 of 11
A Space Name LegacyThe rocket's name comes from a long cosmic legacy.
"Antares" is the name of a red supergiant star in the constellation Scorpius. It's one of the largest stars ever found, with a diameter several hundred times that of the sun. The star is about 600 light-years from Earth, and is among the top 20 brightest stars in the night sky.
The Apollo Lunar Module used during the Apollo 14 mission was also named "Antares." The module brought a two-person crew down to the surface of the moon in 1971, making the "most precise landing to date," according to NASA reports.
Next: Key playerSlide 7 of 11
Orbital ATK and Missile DefenseSlide 8 of 11