Analysis of information sources in references of the Wikipedia article "Human spaceflight programs" in English language version.
Musk tackles the hardest engineering problems first. For Mars, there will be so many logistical things to make it all work, from power on the surface to scratching out a living to adapting to its extreme climate. But Musk believes that the initial, hardest step is building a reusable, orbital Starship to get people and tons of stuff to Mars. So he is focused on that.
RKK Energia, ... in the 1980s ... worked on a highly classified project to develop a large crewed capsule, called Zarya ("Dawn"), for a wide range of civilian and military missions.
Under the NASA plan, a mission to land on the moon would take place during the third launch of the Space Launch System. Astronauts, including the first woman to walk on the moon, Mr. Bridenstine said, would first stop at the orbiting lunar outpost. They would then take a lander to the surface near its south pole, where frozen water exists within the craters.
And before NASA sends astronauts to the moon in 2024, the agency will first have to launch five aspects of the lunar Gateway, all of which will be commercial vehicles that launch separately and join each other in lunar orbit. First, a power and propulsion element will launch in 2022. Then, the crew module will launch (without a crew) in 2023. In 2024, during the months leading up to the crewed landing, NASA will launch the last critical components: a transfer vehicle that will ferry landers from the Gateway to a lower lunar orbit, a descent module that will bring the astronauts to the lunar surface, and an ascent module that will bring them back up to the transfer vehicle, which will then return them to the Gateway.
{{cite web}}: CS1 maint: numeric names: authors list (link)has decided to focus the majority of its resources on the final development of the revolutionary liquid oxygen and liquid hydrogen (LH2) program. This innovative propulsion technology has applications to upper stage liquid hydrogen engines suitable for the Atlas V, Delta IV, and the planned NASA Space Launch System (SLS). ... XCOR's problem is — and has always been — funding. There wasn't enough of it to keep the Lynx staff.
we call it v2 for Dragon. That is the primary vehicle for crew, and we will retrofit it back to cargo.
we call it v2 for Dragon. That is the primary vehicle for crew, and we will retrofit it back to cargo.
Under the NASA plan, a mission to land on the moon would take place during the third launch of the Space Launch System. Astronauts, including the first woman to walk on the moon, Mr. Bridenstine said, would first stop at the orbiting lunar outpost. They would then take a lander to the surface near its south pole, where frozen water exists within the craters.