Black Hole: A region of space with an extremely strong gravitational field from which matter and radiation (including light) cannot escape.
colleague: A person who works with another person, a colleague or team member.
Space: An adjective referring to universe — The universe and everything in it.
Galaxy: A collection of stars held together by gravity, including mysterious dark matter that is normally invisible to the naked eye. Massive galaxies, such as the Milky Way, often contain more than 100 billion stars; the faintest galaxies may only have a few thousand. Some galaxies also contain gas and dust that can form new stars.
InsightThe ability to accurately and deeply understand a situation through thought alone, rather than finding solutions through experimentation.
Light years: The distance light travels in one year is approximately 9.46 trillion kilometers (about 6 trillion miles). To visualize this length, imagine a rope long enough to circle the Earth. The rope would be just over 40,000 kilometers (24,900 miles) long. Take the rope and straighten it out. Then, take 236 million pieces of the same length and lay them end to end. The total distance the rope would travel would be one light-year.
Low Earth Orbit: An orbit fairly close to the Earth's surface, usually at an altitude of 1,000 kilometers (620 miles) or less, and usually no higher than 160 kilometers (99 miles). In contrast, commercial airlines tend to fly at altitudes of 14 kilometers or less, or less than one-tenth of the minimum low-Earth orbit.
Case: Something that occupies space and has mass. Everything that has matter on Earth has a property called “weight.”
Observatory: (in astronomy) A building or structure (such as a satellite) that houses one or more telescopes. It can also be a system of structures that make up a telescope complex.
Star: (adjective) wonderful) The basic building blocks from which galaxies are made. Stars develop when gravity compresses gas clouds. When stars become hot enough, they can also emit light and other forms of electromagnetic radiation. The Sun is the nearest star to us.
telescope: A light concentrator that makes distant objects appear closer, usually using a lens or a combination of curved mirrors and lenses, although some also collect radio radiation (energy from different parts of the electromagnetic spectrum) via a network of antennas.
Temporary: continuing or occurring over a relatively short period of time.
transition: A boundary where one thing (a paragraph, ecosystem, life stage, state of matter) is changed or transformed into another. The change may be abrupt or it may involve a slow or gradual change from one state or environment to another.
universeThe 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).
X-raysIt is a type of radiation similar to gamma rays, but with slightly lower energy.
Source: www.snexplores.org
