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  2. List of spaceflight records - Wikipedia

    en.wikipedia.org/wiki/List_of_spaceflight_records

    The Apollo 10 crew (Thomas Stafford, John W. Young and Eugene Cernan) achieved the highest speed relative to Earth ever attained by humans: 39,897 kilometers per hour (11,082 meters per second or 24,791 miles per hour, about 32 times the speed of sound and 0.0037% of the speed of light). [14] The record was set 26 May 1969. [14]

  3. Human spaceflight - Wikipedia

    en.wikipedia.org/wiki/Human_spaceflight

    Apollo 10 reaches the fastest speed ever traveled by a human: 39,897 km/h (11.08 km/s or 24,791 mph), or roughly 1/27,000 of lightspeed. 20 July 1969 Neil Armstrong and Buzz Aldrin were first to land on the Moon, during Apollo 11. 14 April 1970

  4. Speed record - Wikipedia

    en.wikipedia.org/wiki/Speed_record

    A speed record is a world record for speed by a person, animal, or vehicle. The function of speed record is to record the speed of moving animate objects such as humans, animals or vehicles. The function of speed record is to record the speed of moving animate objects such as humans, animals or vehicles.

  5. List of human spaceflights - Wikipedia

    en.wikipedia.org/wiki/List_of_human_spaceflights

    Four missions successfully achieved human spaceflight, yet ended as fatal failures as their crews died during the return. These were Soyuz 1, X-15 flight 191, Soyuz 11, and STS-107 (Columbia disaster). Twenty two flights in total reached an apogee beyond 50 miles (80 km), but failed to go beyond 62 miles (100 km), so therefore do not qualify as ...

  6. Space travel under constant acceleration - Wikipedia

    en.wikipedia.org/wiki/Space_travel_under...

    From the planetary frame of reference, the ship's speed will appear to be limited by the speed of light — it can approach the speed of light, but never reach it. If a ship is using 1 g constant acceleration, it will appear to get near the speed of light in about a year, and have traveled about half a light year in distance. For the middle of ...

  7. Hypersonic flight - Wikipedia

    en.wikipedia.org/wiki/Hypersonic_flight

    In February 1949, at White Sands, the rocket reached a speed of 8,290 km/h (5,150 mph), or about Mach 6.7. [2] The vehicle, however, burned on atmospheric re-entry, and only charred remnants were found. In April 1961, Russian Major Yuri Gagarin became the first human to travel at hypersonic speed, during the world's first piloted orbital flight.

  8. Astronomers just discovered one of the most massive objects ...

    www.aol.com/2016-11-22-astronomers-just...

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  9. Orders of magnitude (speed) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(speed)

    Speed of propagation for unmyelinated sensory neurons. 30: 110: 70: 1 × 10 −7: Typical speed of car (freeway); cheetah—fastest of all terrestrial animals; sailfish—fastest fish; speed of go-fast boat. 40: 140: 90: 1.3 × 10 −7: Typical peak speed of a local service train (or intercity on lower standard tracks). 40.05: 144.17: 89.59: 1. ...