Astronomy
Explore the Universe
International Space Station(ISS): https://en.wikipedia.org/wiki/International_Space_Station
Blue Origin https://www.blueorigin.com/
SpaceX http://www.spacex.com/
- Falcon Heavy requires the simultaneous ignition of 27 orbit class rockets; the equivalent of three Falcon 9 rockets strapped together
Virgin Galactic http://www.virgingalactic.com/
Google Lunar X Prize https://en.wikipedia.org/wiki/Google_Lunar_X_Prize
Mars
- 2020-07-23 Tianwen-1: China launched its first Mars probe on a Long March-5 rocket from the Wenchang Spacecraft Launch Site https://en.wikipedia.org/wiki/Tianwen-1
- 2018 NASA Mars InSight Mission: https://mars.nasa.gov/insight/
Moon
- 2021: Firefly completes design of Moon mission, aiming for 2023 launch
Navigation Satellite System
- GPS (US)
- GLONASS (Russia)
- BDS/Beidou (China)
Telescope
Five hundred meter Aperture Spherical Telescope(FAST) or Tianyan( 天眼 )
- consists of a fixed 500 m (1,600 ft) diameter dish
- the world's largest filled-aperture radio telescope, from 2016
Arecibo Observatory
- the largest single-aperture telescope before 2016
Kepler
https://en.wikipedia.org/wiki/Kepler_(spacecraft)
- space observatory
Gravitational-Wave
LIGO: The Laser Interferometer Gravitational-Wave Observatory https://www.ligo.caltech.edu/
Arecibo
https://www.nytimes.com/2017/06/28/magazine/greetings-et-please-dont-murder-us.html?_r=0
Musk
https://www.youtube.com/watch?v=S5V7R_se1Xc
https://www.youtube.com/watch?v=H7Uyfqi_TE8
How Far
- Earth to Moon: 384402 km, 238856 mi, about 3 days
- Earth to Mars: closest every 2 years 55 million km, about 300 days
sol: Martian day. 1 Martian year = 687 Earth days = 669 sols