Zach Rosenberg (16 de marzo de 2012). «SpaceX readies upgraded engines». Flightglobal. Consultado el 17 de enero de 2018. «SpaceX is in the midst of a variety of ambitious engine programmes, including the Merlin 2, a significant modification of the Merlin 1 series, and the Raptor upper stage engine. Details of both projects are tightly held.»
Alan Boyle (5 de enero de 2015). «Coming Soon From SpaceX's Elon Musk: How to Move to Mars». NBC News. Consultado el 8 de enero de 2015. «The Mars transport system will be a completely new architecture. Am hoping to present that towards the end of this year. Good thing we didn't do it sooner, as we have learned a huge amount from Falcon and Dragon.»
Rod Coppinger (23 de noviembre de 2012). «Huge Mars Colony Eyed by SpaceX Founder Elon Musk». Space.com. Consultado el 10 de junio de 2013. «The fully reusable rocket that Musk wants to take colonists to Mars is an evolution of SpaceX's Falcon 9 booster.... 'It's going to be much bigger [than Falcon 9], but I don’t think we’re quite ready to state the payload. We’ll speak about that next year,' Musk said. ... 'Vertical landing is an extremely important breakthrough — extreme, rapid reusability.'».
William Harwood (29 de septiembre de 2017). «Elon Musk revises Mars plan, hopes for boots on ground in 2024». Spaceflight Now. Archivado desde el original el 30 de enero de 2018. «The new rocket is still known as the BFR, a euphemism for 'Big (fill-in-the-blank) Rocket.' The reusable BFR will use 31 Raptor engines burning densified, or super-cooled, liquid methane and liquid oxygen to lift 150 tons, or 300,000 pounds, to low Earth orbit, roughly equivalent to NASA’s Saturn 5 moon rocket.»
Jeff Foust (15 de octubre de 2017). «Musk offers more technical details on BFR system». SpaceNews. Consultado el 15 de octubre de 2017. «[The] spaceship portion of the BFR, which would transport people on point-to-point suborbital flights or on missions to the moon or Mars, will be tested on Earth first in a series of short hops. ... a full-scale Ship doing short hops of a few hundred kilometers altitude and lateral distance ... fairly easy on the vehicle, as no heat shield is needed, we can have a large amount of reserve propellant and don't need the high area ratio, deep space Raptor engines.»
2016 StartmeupHK Venture Forum - Elon Musk on Entrepreneurship and Innovation. StartmeupHK Venture Forum--2016 (video). Invest Hong Kong. 26 de enero de 2016. Escena en 30:15-31:40. Consultado el 26 de enero de 2016 – via YouTube. «We'll have the next generation rocket and spacecraft, beyond the Falcon and Dragon series... I'm hoping to describe that architecture later this year at the International Astronautical Congress. which is the big international space event every year. ... first flights to Mars? we're hoping to do that in around 2025 ... nine years from now or thereabouts.»
William Harwood (29 de septiembre de 2017). «Elon Musk revises Mars plan, hopes for boots on ground in 2024». Spaceflight Now. Archivado desde el original el 30 de enero de 2018. «The new rocket is still known as the BFR, a euphemism for 'Big (fill-in-the-blank) Rocket.' The reusable BFR will use 31 Raptor engines burning densified, or super-cooled, liquid methane and liquid oxygen to lift 150 tons, or 300,000 pounds, to low Earth orbit, roughly equivalent to NASA’s Saturn 5 moon rocket.»
2016 StartmeupHK Venture Forum - Elon Musk on Entrepreneurship and Innovation. StartmeupHK Venture Forum--2016 (video). Invest Hong Kong. 26 de enero de 2016. Escena en 30:15-31:40. Consultado el 26 de enero de 2016 – via YouTube. «We'll have the next generation rocket and spacecraft, beyond the Falcon and Dragon series... I'm hoping to describe that architecture later this year at the International Astronautical Congress. which is the big international space event every year. ... first flights to Mars? we're hoping to do that in around 2025 ... nine years from now or thereabouts.»
Elon Musk (19 de julio de 2017). Elon Musk, ISS R&D Conference (video). ISS R&D Conference, Washington DC, USA. Escena en 49:48–51:35. Consultado el 13 de septiembre de 2017 – via YouTube. «the updated version of the Mars architecture: Because it has evolved quite a bit since that last talk. ... The key thing that I figured out is how do you pay for it? If we downsize the Mars vehicle, make it capable of doing Earth-orbit activity as well as Mars activity, maybe we can pay for it by using it for Earth-orbit activity. That is one of the key elements in the new architecture. It is similar to what was shown at IAC, but a little bit smaller. Still big, but this one has a shot at being real on the economic front.»
Elon Musk (28 de septiembre de 2019). Starship Update (video). SpaceX. Escena en 1:45. Consultado el 30 de septiembre de 2019 – via YouTube.
Elon Musk (29 de septiembre de 2017). Becoming a Multiplanet Species (video). 68th annual meeting of the International Astronautical Congress in Adelaide, Australia: SpaceX. Consultado el 14 de diciembre de 2017 – via YouTube.
