Private spaceflight | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-25

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Private_spaceflight


00:02:05 1 History of commercial space transportation
00:06:22 1.1 American deregulation
00:11:28 1.2 Russian privatization
00:12:32 1.3 Launch alliances
00:13:15 1.4 Spaceflight privatization
00:15:44 2 Companies
00:16:23 2.1 Funding
00:17:32 2.2 Commercial launchers
00:18:23 2.2.1 US government commercial cargo services
00:20:28 2.3 Emerging personal spaceflight
00:23:00 2.4 Private foundations
00:23:56 3 Plans
00:24:48 3.1 Private orbital spaceflight, space stations
00:27:12 3.2 On-orbit propellant depots
00:28:04 3.3 Asteroid mining
00:28:35 3.4 Space elevators
00:29:13 4 Venture capital investment
00:30:35 5 Non-launched efforts
00:30:45 5.1 Failed spaceflight ventures
00:34:06 5.2 Private space stations
00:34:48 5.3 Lunar private ventures
00:34:58 5.3.1 Robotic Lunar-surface missions
00:35:25 5.3.2 Private Lunar-surface crewed expeditions
00:36:27 5.4 Mars ventures
00:38:12 6 See also
00:38:21 6.1 Manned Spacecraft



Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts



"There is only one good, knowledge, and one evil, ignorance."
- Socrates



SUMMARY
=======
Private spaceflight is flight beyond the Kármán line (above the nominal edge of space at 100 km (62 mi) Earth altitude)—or the development of new spaceflight technology—that is conducted and paid for by an entity other than a government agency.
In the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bureaus in the USSR and private companies in the US, entirely funding both the development of new spaceflight technologies and the operational costs of spaceflight. The European Space Agency was formed in 1975, largely following the same model of space technology development.
Later on, large defense contractors began to develop and operate space launch systems, derived from government rockets. Private spaceflight in Earth orbit includes communications satellites, satellite television, satellite radio, astronaut transport and sub-orbital and orbital space tourism.
In the 2000s, entrepreneurs began designing—and by the 2010s, deploying—space systems competitive to the national-monopoly governmental systems of the early decades of the space age.  These new offerings have brought about significant market competition in space launch services after 2010 that had not been present previously.
Successes to date include flying suborbital spaceplanes, launching orbital rockets, flying two orbital expandable test modules (Genesis I and II), and the successful development of first-stage orbital launch vehicles that are able to vertically land after a launch so as to enable reuse. The most powerful rocket in operation as of 2018, the Falcon Heavy, was privately developed.
Planned private spaceflights beyond Earth orbit include personal spaceflights around the Moon. Two private orbital habitat prototypes are already in Earth orbit, with larger versions to follow. Planned private spaceflights beyond Earth orbit include solar sailing prototypes (LightSail-3).