Array: A group of objects organized over a broad area. Sometimes, it is a systematic arrangement of devices for the coordinated gathering of information. An array can also refer to things arranged or displayed in a way that allows different related things, such as colors, to be seen at once. The term can also apply to different options or choices.
Astronomy: The branch of science that deals with celestial bodies, space, and the physical universe. People who work in this field are called astronomers.
Black Hole: A region of space with an extremely strong gravitational field from which matter and radiation (including light) cannot escape.
Celestial Bodies: Naturally formed objects of significant size in outer space. Examples include comets, asteroids, planets, moons, stars, and galaxies.
Universe: (adjective: cosmic) A term referring to the universe and everything in it.
Event Horizon: An imaginary sphere that surrounds a black hole. The more massive the black hole, the larger the sphere. What happens inside the event horizon is invisible to the naked eye, as gravity is so strong that even light cannot escape under normal circumstances. However, physics theories suggest that small amounts of radiation can escape under certain circumstances.
Infrared: A type of electromagnetic radiation that is invisible to the human eye. Its name comes from the Latin for “below red”. Infrared radiation has a longer wavelength than what is visible to the human eye. Other invisible wavelengths include x-rays, radio waves, and microwaves. Infrared radiation tends to record the thermal properties of objects and environments.
Interferometry: (Optics) A technique used to measure things like the wavelength and distance of electromagnetic waves. A beam of light is split into two. Then the two beams are recombined at some distance, creating a condition called interference. When the two waves overlap, a new wave is produced, reflecting the pattern of the first wave in size and shape.
Link: A connection between two people or things.
Optics: An adjective referring to light or vision.
Wireless: Refers to radio waves or devices that receive these transmissions.
Radio Waves: A type of wave that is part of the electromagnetic spectrum and is currently used for long-distance communication. Radio waves, longer than visible light waves, are used to transmit radio and television signals, as well as for radar.
Solution: (in optics) a term referring to the degree of clarity or detail with which an object is seen. (verb resolve)
Universe: The entire universe: everything that exists across space and time. The universe has been expanding ever since it was formed in an event called the Big Bang about 13.8 billion years ago (with some margin of error of a few hundred million years).
Virtual: Almost resembling something. An object or concept that is virtually real is nearly true or real, but not entirely. The term is often used to refer to something that is not a real-world part, but is modeled (or achieved) by a computer using numbers. Thus, a virtual motor is a motor that can be viewed on a computer screen and tested by computer programming (but is not a three-dimensional device made of metal).
Visible Light: A type of electromagnetic radiation with wavelengths ranging from 380 nanometers (violet) to 740 nanometers (red). Visible light has a shorter wavelength than infrared, microwave, and radio waves, but is longer than ultraviolet, x-rays, and gamma rays.
Source: www.snexplores.org
