With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: SpaceX is focused on reusable launch systems.
text_B: Space Exploration Technologies Corporation , better known as SpaceX , is an American aerospace manufacturer and space transport services company headquartered in Hawthorne , California .. Hawthorne. Hawthorne, California. California. California. aerospace manufacturer. aerospace manufacturer. space transport. space transport. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars .. Elon Musk. Elon Musk. colonization of Mars. colonization of Mars. SpaceX has since developed the Falcon launch vehicle family and the Dragon spacecraft family , which both currently deliver payloads into Earth orbit .. Falcon. Falcon ( rocket family ). Dragon. SpaceX Dragon. Earth orbit. Geocentric orbit. SpaceX 's achievements include the first privately funded liquid-propellant rocket to reach orbit -LRB- Falcon 1 in 2008 -RRB- ; the first privately funded company to successfully launch , orbit , and recover a spacecraft -LRB- Dragon in 2010 -RRB- ; the first private company to send a spacecraft to the International Space Station -LRB- Dragon in 2012 -RRB- ; the first propulsive landing for an orbital rocket -LRB- Falcon 9 in 2015 -RRB- ; and the first reuse of an orbital rocket -LRB- Falcon 9 in 2017 -RRB- .. Falcon. Falcon ( rocket family ). Dragon. SpaceX Dragon. liquid-propellant rocket. liquid-propellant rocket. International Space Station. International Space Station. , SpaceX has since flown ten missions to the International Space Station -LRB- ISS -RRB- under a cargo resupply contract .. International Space Station. International Space Station. cargo resupply contract. Commercial Resupply Services. NASA also awarded SpaceX a further development contract in 2011 to develop and demonstrate a human-rated Dragon , which would be used to transport astronauts to the ISS and return them safely to Earth .. Dragon. SpaceX Dragon. a further development contract. Commercial Crew Development. human-rated. human-rating certification. SpaceX announced in 2011 that they were beginning a privately funded reusable launch system technology development program .. reusable launch system technology development program. SpaceX reusable launch system development program. In December 2015 , a first stage was flown back to a landing pad near the launch site , where it successfully accomplished a propulsive vertical landing .. vertical landing. VTVL. This was the first such achievement by a rocket for orbital spaceflight .. orbital spaceflight. orbital spaceflight. In April 2016 , with the launch of CRS-8 , SpaceX successfully vertically landed a first stage on an ocean drone-ship landing platform .. CRS-8. CRS-8. drone-ship. Autonomous spaceport drone ship. In May 2016 , in another first , SpaceX again landed a first stage , but during a significantly more energetic geostationary transfer orbit mission .. geostationary transfer orbit. geostationary transfer orbit. In March 2017 , SpaceX became the first to successfully re-launch and land the first stage of an orbital rocket .. In September 2016 , CEO Elon Musk unveiled the mission architecture of the Interplanetary Transport System program , an ambitious privately funded initiative to develop spaceflight technology for use in manned interplanetary spaceflight , and which , if demand emerges , could lead to sustainable human settlements on Mars over the long term .. Elon Musk. Elon Musk. CEO. Chief executive officer. Interplanetary Transport System. Interplanetary Transport System. interplanetary spaceflight. interplanetary spaceflight. demand. demand ( economics ). This is the main purpose this System was designed for .. In 2017 , Elon Musk announced that the company had been contracted by two private individuals to send them in a Dragon spacecraft on a free return trajectory around the Moon .. Elon Musk. Elon Musk. Dragon. SpaceX Dragon. free return trajectory. free return trajectory. Moon. Moon. Provisionally launching in 2018 , this could become the first instance of lunar tourism .. lunar tourism. tourism on the Moon
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