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Planet Hunt

Across
An area of the solar system beyond the orbit of Neptune. It is a vast area containing leftovers from the formation of the solar system that continue to orbit the sun.
An area of astronomy that deals with understanding the physical nature of stars and other objects in space.
To try and imitate the conditions, functions or appearance of something.
Movement from one region or habitat to another, especially regularly and according to the seasons.
The curved path of a celestial object or spacecraft around a star, planet or moon. One complete circuit around a celestial body.
The degree to which a planet’s orbit deviates from a perfect circle.
A dwarf planet that is located in the Kuiper Belt, just beyond Neptune.
To place or organize things in a patterned order, following an apparent line.
A cloud of space gas and dust existing between major adult stars. Telescopes can detect these clouds by the light they emit or reflect.
A ________ model is a program that creates a model, or simulation, of a real-world feature, phenomenon or event.
he force that attracts anything with mass, or bulk, toward any other thing with mass.
Down
An adjective that describes two things that are situated approximately 90 degrees to each other.
A flat surface (like a sheet or piece of paper) that extends in all directions, infinitely, without end.
The area of science that deals with celestial objects, space and the physical universe.
The eight major planets and their moons in orbit around the sun, together with smaller bodies in the form of dwarf planets, asteroids, meteoroids and comets.
A massive group of stars bound together by gravity, which each typically include between 10 million and 100 trillion stars, also include clouds of gas, dust and the remnants of exploded stars.
Some outside influence that can change the motion of a body, hold bodies close to one another, or produce motion or stress in a stationary body.
Usually a light-collecting instrument that makes distant objects appear nearer through the use of lenses or a combination of curved mirrors and lenses. Some, however, collect radio emissions (energy from a different portion of the electromagnetic spectrum) through a network of antennas.
The galaxy in which Earth’s solar system resides.
A celestial object that orbits a star, is big enough for gravity to have squashed it into a roundish ball and it must have cleared other objects out of the way in its orbital neighborhood.
To collect and store materials, including sounds, videos and objects, so that they can be found and used when they are needed.
A _______ planet is one of the solar system’s small celestial objects. Like a true planet, it orbits the sun.