TC I Lesson 21 vocabulary

Aurora borealis or the northern lights.

Galaxies, planets, stars, all forms of energy.

The distance that light travels in one year; about 9,460,000,000,000 kilometers

Constellations. A group of stars that forms a particular pattern and has a name. Big Dipper, Pegasus, Cassiopeia, Gemini, etc.

A meteor.

a comet; an object in space like a bright ball with a long tail, that moves around the Sun

Neptune. It is 4 times the size of the Earth. It is the windiest planet and it's the furthest away from the sun.

Astrology is the study of how stars and their movements might influence people, but astronomy is the scientific study of the stars and planets

What is likely to happen in the future.

To interest someone a lot, especially by being strange, unusual, or mysterious. The final part of the email intrigued me greatly.

Mercury. It's the smallest of 8 main planets and the closest to the sun. It has no atmosphere. It is very hot during the day and freezing cold at night.

Mars. It is known as the Red Planet. Its surface is covered in rust-like dust. It has the highest volcano in the solar system.

Titan.

Satrun. It is the second largest planet and has rings that are made up of ice crystals. It has many moons that surround it.

Jupiter. It is the largest planet. It has many moons and rings. It is a very stormy planet.One hurricane has been raging for 300 years on it.

A science fiction film.

Extremely small living things which you can only see if you use a microscope.

Uranus. It contains large amounts of methane which scatters blue light. It spins very slowly. It has daylight for 42 Earth years and then darkness for 42 years.

Venus. It is a bit smaller than the Earth and is the hottest planet. Its surface is full of active volcanoes.

A large group of stars, gas and dust held together by gravity.

Galileo Galilei. He was an Italian astronomer. He studied the moon and Venus.

A meteor. It is a piece of rock or metal that travels through space, and makes a bright line in the night sky when it falls down towards the Earth.

About 365 days.