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I’ve never liked using solid-fuel rockets for manned flight. Once you start them, they can’t be turned off or throttled down. The SLS will use solid-rocket boosters, and I can’t help thinking about the Challenger disaster, caused by failure of an O-ring seal in a solid-rocket booster.
originally posted by: jrod
a reply to: litterbaux
SpaceX Falcon 9's use kerosene and liquid oxygen. Solid rocket boosters can't land themselves.
The ULA vehicles still use solid rocket boosters, SpaceX does not. That includes the Atlas V, and the Vulcan and SLS which are still in production phases.
SpaceX's Starship will use methane and liquid oxygen and will land itself making it the first crewed vehicle to land itself with propulsion.
Im glad to see SpaceX leading the way.
originally posted by: cmdrkeenkid
President Bush had us on track to shutter the Shuttle program and get us back into space with indigenous vehicles with his ambitious Vision for Space Exploration in 2004. Under these guidelines we would have ran the Shuttles until 2010 while developing the Constellation program (admittedly plagued by delays and budget issues) to have its first flight in 2014. We also would have been back to the Moon this year. In fact, the Lunar Reconnaissance Orbiter was launched in support of this agenda.
President Obama, in 2010, cancelled all of his predecessor's ambitious plans and implemented his own. This cancellation set NASA back years, while in turn not really saving any money; continued development of Constellation or the realignment each cost several billions of dollars. Shifting the focus to Mars, while admirable, was placed so far in the future that it was essentially a meaningless gesture, much like the entire shift in policy.
President Obama did decimate NASA.
originally posted by: Scapegrace
Artemis 2, the first manned Orion spacecraft mission, is scheduled for late 2022. It’s planned to fly a circumlunar mission — the first manned spacecraft to escape the Earth’s gravity since Apollo 17 in December 1972.
originally posted by: Stupidsecrets
I fail to see how mentioning space exploration and politics is cheap political scoring. It takes investment (capitalism) and tax dollars to push the boundaries. One of the front runner candidates does not like capitalism and does not like space exploration. From his own comments, he wants to fix people problems on the ground first. Just something to think about if one likes space exploration and advancing technology. People can hate billionaires all they want but the main people pushing space exploration are billionaires. Besides SpaceX there is also Breakthrough Starshot being ramped up by Zuckerberg.
originally posted by: litterbaux
a reply to: rickymouse
Of course accidents will happen but if I were an astronaut in these times where solid fuel boosters land themselves I’d feel relatively safe. Those early guys were absolutely nuts.
If you’ve ever watched a live spaceX launch with all of the monitoring and such, it’s a new age.