Galaxy, Space exploration, Advances and Observations
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- Our galaxy
- The Milky Way
- The closest galaxy
- The Andromeda Galaxy
- Most distant visible object
- Quasars
- Millions of galaxies contain
- solar systems
- Space exploration has allowed humans to learn
- workings of solar system, composition of planets and effects of many types of solar radiation of Earth and its inhabitants
- Human accomplishments
- traveled to the moon, landed probes on Mars and Venus, sent probes past Jupiter, Saturn and Uranus.
- International Space Station
- Joint efforts of many countries. Built to allow space to be studied continually.
- Built so scientists could learn more about uniqueness of Earth and its place in our solar system and universe
- Hubble Telescope
- Allows scientists from around the world to obtain x-ray images of exotic environment to help understand the structure and evolution of the universe
- Chandra X-ray Observatory
- three cryogenically-cooled science instruments which will perform imaging and spectroscopy in the 3 -180 micron wavelength range. Since infrared is primarily heat radiation, detectors are most sensitive to infrared light when they are kept extremely cold.
- Spitizer Space Telescope
- four instruments that covered six decades of the electromagnetic spectrum. An improvement in sensitivity of better than a factor of ten was realized over previous missions.
- Compton Gamma Observatory
- Unveiled a previously unseen structure centered in the Milky Way. This feature spans 50,000 light-years and may be the remnant of an eruption from a supersized black hole at the center of our galaxy.
- Fermi-Gamma-ray
- Many of our modern conveniences are the result of products developed for use in the space program!
- microwaves, hand held calculators.