(For more about Power Words click here alien  A non-native organism. (in astronomy) Living in or out of a distant world
arXiv A website that conducts research – often before its official publication – in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance science and statistics. Anyone can read a published newspaper for free
Astronomy The field of science dealing with celestial objects, space, and the physical universe. People who work in this field are called astronomers.
broadcast Throw or send something over a relatively large distance. A farmer can send seeds by throwing them over a large area by hand. A speaker can send sounds over a long distance. An electronic transmitter can transmit electromagnetic signals over the air to a remote radio, television or other receiving device. And a newscaster can give details of events to listeners in a wide area, even the world over.
Colleague Someone who works with another; an employee or team member
cosmic An adjective that refers to the cosmos ̵
E. T. (p.) An abbreviation used in 1982 by Universal Pictures, E.T. the alien. The main character was a charming space-alien named E.T. His most famous line from the movie was "E.T. Phone Home." E.T. Since then, it has been used as a colloquial expression for every intelligent and potentially friendly stranger to space
extraterrestrial (ET) Anything from or from Regions Beyond Earth
Factor Something that plays a role in a particular condition or event; a contributor
frequency The number of times a given periodic phenomenon occurs within a given time interval. (In physics) The number of wavelengths that occur in a given time interval.
physical (adj.) A term for things that exist in the real world, as opposed to memories or imagination. It may also refer to properties of materials that, due to their size and non-chemical interactions (such as when one block collides with force in another)
radio waves waves in part of the electromagnetic spectrum. They are a way that people now use for remote communication. For longer than the waves of visible light, radio waves are used to transmit radio and television signals. They are also used in radar
random Something that happens randomly or without reason, based on no intention or purpose
area The full extent or distribution of something. For example, the range of a plant or animal is the area over which it naturally exists. (in math or for measurements) The extent to which a change in values is possible. Also the distance in which something can be reached or perceived.
Seawater The salty waters of the oceans
SETI Abbreviation for "Search for extraterrestrial intelligence," meaning life on other worlds.
Telescope Typically a light-gathering instrument that makes distant objects appear closer through the use of lenses or a combination of curved mirrors and lenses. However, some collect radio emissions (energy from another part of the electromagnetic spectrum) through a network of antennas.
trillion A number that represents one million million – or 1,000,000,000,000 – of something.
Universe The entire cosmos: All things that exist in space and time. It has been expanding since its creation during an event known as the Big Bang about 13.8 billion years ago (give or take a few hundred million years).
wave A disorder or variation that moves through space and matter in a regular, oscillating fashion.