4. What is meant by the phase “looking out in the universe is looking back in time?” | 1. The sun is a star at the center of our solar system and its light and energy makes it possible for life on earth. 2. The Milky Way galaxy is the galaxy in which our solar system lies.
It is, therefore, true to say that everything that exists in the Universe is not permanent. The importance of the Sun to life on Earth 1. Earth and other planets are linked to the Sun by a gravitational force. The gravitational force of the Sun is always present to keep Earth in the right position to receive light and heat from the Sun. 2.
The lunar phases vary cyclically as the Moon orbits the Earth, according to the changing relative positions of the Earth, Moon and Sun. One half of the lunar surface is always illuminated by the Sun (except during lunar eclipses), and hence is bright, but the portion of the illuminated hemisphere that is visible to an observer can vary from 100% (full moon) to 0% (new moon). The boundary between the illuminated and unilluminated hemispheres is called the terminator. Lunar phases are the result of looking at the illuminated half of the Moon from different viewing geometries; they are not caused by shadows of the Earth on the Moon that occur during a lunar eclipse. The Moon exhibits different phases as the relative geometry of the Sun, Earth and Moon changes, appearing as a full moon when the Sun and Moon are on opposite sides of the Earth, and as a new moon (also named dark moon, as it is
Electromagnetic Radiation: Radiation consisting of oscillating electric and magnetic fields, namely gamma rays, X-rays, visible light, ultraviolet and infrared radiation and radio waves. Interstellar Medium: Interstellar gas and dust. Julian date: A Julian date or day number is the number of elapsed days since the beginning of a cycle of 7,980 years invented by Joseph Scaliger in 1583. Magnetic Field: A region of space near a magnetized body within which magnetic forces can be detected. Neutron Star: A very compact, dense stellar remnant composed almost entirely of neutrons.
The sun is 93 million miles away from Earth, but its gravity is strong enough to hold the Earth in its orbit. The gravity of the solar system keeps everything in the system, including comets and asteroids, orbiting the center of the system, the sun. Copyright © 2013 edHelper Name _____________________________ | | | Date ___________________ | Gravity 1. | What is gravity? The basic force of the universe The force of attraction between all objects in the universe A force we experience all the time All of the above | | 2.
The cycle of day and night is caused by… a. Earth’s orbit b. the Sun’s rotation c. Earth’s rotation d. the movement of the moon 12. Earth’s trip around the Sun takes… a. one day b. one year c. one month d. 24 hours 13. What causes the Earth’s seasons? a. Earth’s tilted axis as it revolves around the Sun b. the Sun’s position in the sky c. Earth moving closer and then farther away from the Sun d. the Sun’s motion 14. What is the name of the phase of the Moon when it is between the Sun and the Moon?
Consequently, the study of the birth, life, and death of stars is central to the field of astronomy. ] (Netting, 2011) We explore the complexity of the stars and what astronomers use to determine fundamentals of their temprature, speed , rotation, and composition.
Comet tails are made up of simple ionized molecules, including carbon monoxide and dioxide. By action of solar wind, molecules are blown away, forming a thin stream of hot gases continuously ejected from the solar corona. In case you do not know the meaning of a solar corona, it is the outermost atmosphere of the Sun. Amazingly, the thin streams of high gases move at a speed of approximately 400 kilometers (250 miles) per second (as cited in Yeomans 1991 p. 185). In addition, a comet frequently also displays smaller, curved tails composed of fine dust particles blown from the coma by the pressure of solar
Unit 11 – AO1 – The Universe and the Big Bang Introduction - This AO explores the parts that make up the universe and how these parts tie in to each other to make up the world we live in. Check List - This assignment requires the following tasks to be completed: 1. Features of the Universe * The Universe * The Big Bang Theory * Stars * Galaxies * Constellations * Nebulae * Planets * Asteroids * The Sun 2. Life Cycle of a Star * Explain each of the 6 stages of a star’s life cycle. Include the name given to the star for each stage 3.