DISCUSS THE CURRENT METHODS USED TO SEARCH FOR EXTRA-TERRESTRIAL INTELLIGENCE, SUCH AS RADIOTELESCOPES AND SPACE PROBES. GIVE YOUR OPINION ON HOW LIKELY IT IS THAT LIFE WILL BE DISCOVERED AND GIVE EVIDENCE TO SUPPORT YOUR ANSWER.
WHAT IS EXTRA-TELESTRIAL INTELLIGENCE?
Extra-terrestrial Intelligence can be abbreviated to ETI, which asks the question; ‘Are we alone in this universe?’ ETI is life discovered beyond Earth, not organisms that humans sent to space. Scientifically, extra-terrestrial life may be titled; xenobiology, exobiology or astrobiology.
Satellites are objects placed into orbit around celestial objects such as, planets or stars. Artificial satellites collect information about a terrestrial object and send it to…show more content… This allows communication satellites to remain in the same position in relation to the ground.
- Inclined orbit: An inclined satellite passes over a different part of the planet each orbit.
- Polar orbit: A polar orbit passes over the north and south poles each orbit crossing various places in the equator each orbit.
- Elliptical orbit: An elliptical orbit has no specific speed or distance, it depends on the apogee (furthest distance away) and perigee (closest to the surface).
The first artificial satellite was Sputnik 1, and satellites have continued to be launched since 1957. Sputnik 1 was a small aluminium ball with four antennas attached, although modern ETI’s have more complex bodies they are still designed following the same basic structure. With experimentation, these bodies have been designed to be as strong and light as possible with the same essential uses. There is a platform named a bus inside satellites which has; antennas, solar arrays and payload instruments attached. It also contains batteries, computers and thrusters. Satellites have large panels attached as they have to charge themselves, these arrays can be tilted to allow for the most amount of sunlight possible. If the satellite drifts into shade rechargeable batteries become the new power source.
A space probe is a robotic spacecraft that exits Earth to explore space. Probes