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(for more information on Power Words, click on right here)
extraterrestrial A non-native organism (in astronomy) Life on or from a distant world.
arXiv A website that publishes research papers – often before their official publication – in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance and statistics. Anyone can read an article posted without charge.
astronomy Scientific field dealing with celestial objects, space and the physical universe. People working in this field call astronomers.
spread To launch – or send – something over a relatively large distance. A farmer can spread seeds by hand-throwing them over a large area. A speaker can send sounds over a long distance. An electronic transmitter can transmit electromagnetic signals over the air to a radio, television, or other remote receiver. And a presenter can broadcast detailed event information to listeners from a vast territory, even from around the world.
colleague Someone who works with another; a colleague or a member of the team.
cosmic An adjective that refers to the cosmos – the universe and all that it contains.
AND. (n.) Abbreviation made famous by the 1982 Universal Pictures film, E.T. Alien. The main character was a lovely alien named E.T. His most famous line of the movie was "E.T. call home. has since become a familiar term for any intelligent and potentially friendly extraterrestrial.
extraterrestrial (ET) Everything that comes from or out of the Earth.
postman Something that plays a role in a particular condition or event; a contributor.
frequency Number of times that a specified periodic phenomenon occurs within a specified time interval. (In physics) The number of wavelengths that occur on a particular time interval.
physical (adj.) Term referring to things existing in the real world, as opposed to memories or imagination. This can also refer to the properties of the materials because of their size and their non-chemical interactions (such as when one block slams with force into another).
radio waves Waves in a part of the electromagnetic spectrum. This is a type that people are now using for long distance communications. Longer than visible light waves, radio waves are used to transmit radio and television signals. They are also used in radar.
randomly Something that happens at random or without reason, without intention or purpose.
interval The full extent or distribution of something. For example, the range of a plant or animal is its natural surface. (in math or for measurements) The extent to which variation of values is possible. In addition, the distance to the inside of which something can be reached or perceived.
sea water Salt water found in the oceans.
SETI Abbreviation for "search for extraterrestrial intelligence", meaning life on other worlds.
telescope It is usually a light-collecting instrument for bringing distant objects closer together through the use of lenses or a combination of mirrors and curved lenses. Some, however, collect radio emissions (energy from a different part of the electromagnetic spectrum) via an antenna network.
trillion A number representing a million – or a billion – of something.
universe The entire cosmos: all things that exist in space and time. It has been expanding since its inception at an event known as the Big Bang, about 13.8 billion years ago (a few hundred million years ago).
wave A disturbance or variation that traverses space and matter in a regular and oscillating way.
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