Our Place in the Cosmos
... Gravity is caused by the curvature of spacetime; the curvature is induced by the presence of matter “Matter tells space how to curve, space tells matter how to move” (John Wheeler) Light rays are bent when they pass near a large mass, a prediction confirmed by Arthur Eddington in 1919 ...
... Gravity is caused by the curvature of spacetime; the curvature is induced by the presence of matter “Matter tells space how to curve, space tells matter how to move” (John Wheeler) Light rays are bent when they pass near a large mass, a prediction confirmed by Arthur Eddington in 1919 ...
Document
... Way, Andromeda (M31), and Triangulum (M33)—plus a few dozen dwarf galaxies with elliptical or irregular shapes. • Gravitationally bound together—orbiting about a common center of mass • Ellipsoidal in shape • About 6.5 million light-years in diameter ...
... Way, Andromeda (M31), and Triangulum (M33)—plus a few dozen dwarf galaxies with elliptical or irregular shapes. • Gravitationally bound together—orbiting about a common center of mass • Ellipsoidal in shape • About 6.5 million light-years in diameter ...
Unit 8 Chapter 26 Studying Space
... dish. In New Mexico there is an array of them able to act as one, the Very Large Array (VLA). This enables astronomers to hear radio waves from outer space (like the movie Contact). ...
... dish. In New Mexico there is an array of them able to act as one, the Very Large Array (VLA). This enables astronomers to hear radio waves from outer space (like the movie Contact). ...
The Solar System
... • the path of an object in space as it travels around another object • planets orbit around the sun in an elliptical (flattened circle or oval) path; proposed by Johannes Kepler Kepler’s 1st Law • due to the gravitational attraction, a planet’s (or other object’s) speed increases as it approaches ...
... • the path of an object in space as it travels around another object • planets orbit around the sun in an elliptical (flattened circle or oval) path; proposed by Johannes Kepler Kepler’s 1st Law • due to the gravitational attraction, a planet’s (or other object’s) speed increases as it approaches ...
Science 9 Unit E Section 1.0
... Venus is similar to Earth in diameter, mass, and gravity, and is often called Earth’s twin. A closer look at conditions on Venus’s surface shows where the similarities end. Venus would be horrific for humans to visit. Surface temperatures are kept hot due to a greenhouse effect caused by thick cloud ...
... Venus is similar to Earth in diameter, mass, and gravity, and is often called Earth’s twin. A closer look at conditions on Venus’s surface shows where the similarities end. Venus would be horrific for humans to visit. Surface temperatures are kept hot due to a greenhouse effect caused by thick cloud ...
Sixth Grade Science Vocabulary by Standard Standards 1 and 2
... Light Year: The distance light travels in one year; it is used to measure distances in space. ...
... Light Year: The distance light travels in one year; it is used to measure distances in space. ...
Friends of the Planetarium Newsletter September
... The sophisticated piano-sized spacecraft, which launched in January 2006, reached Neptune's orbit, nearly 4.4 billion kilometers from Earth, in a record eight years and eight months. New Horizons' milestone matched precisely the 25th anniversary of the historic encounter of NASA's Voyager 2 spacecra ...
... The sophisticated piano-sized spacecraft, which launched in January 2006, reached Neptune's orbit, nearly 4.4 billion kilometers from Earth, in a record eight years and eight months. New Horizons' milestone matched precisely the 25th anniversary of the historic encounter of NASA's Voyager 2 spacecra ...
Solar System Essays, Symeonides Answers
... The typical gas giant planet is many times larger than the Earth. Gas giants have very small metal or rocky cores, since most of these materials stayed near the center of the solar nebula as the solar system formed. Then there is a thick layer of liquid or frozen gasses. This would be the planet’s s ...
... The typical gas giant planet is many times larger than the Earth. Gas giants have very small metal or rocky cores, since most of these materials stayed near the center of the solar nebula as the solar system formed. Then there is a thick layer of liquid or frozen gasses. This would be the planet’s s ...
Space Place
... the cluster, another instrument, the Wide Field Camera 3, used an optical trick to image a parallel field, offset by just a few arc minutes. Then the technique was reversed, giving us an unprecedentedly deep view of two closely aligned fields simultaneously, with wavelengths ranging from 435 to 1600 ...
... the cluster, another instrument, the Wide Field Camera 3, used an optical trick to image a parallel field, offset by just a few arc minutes. Then the technique was reversed, giving us an unprecedentedly deep view of two closely aligned fields simultaneously, with wavelengths ranging from 435 to 1600 ...
Natural Science 9: Test Review-Space Answers 1. pg 434 #2 a – i a
... Meteroid – a lump of rock or metal trapped by Earth’s gravity and pulled down through Earth’s atmosphere Meteor – a bright streak of light across the sky caused by a meteoroid Comet – a chunk of ice and dust that travels in a very long orbit around the sun Rotation – the spinning of an object on its ...
... Meteroid – a lump of rock or metal trapped by Earth’s gravity and pulled down through Earth’s atmosphere Meteor – a bright streak of light across the sky caused by a meteoroid Comet – a chunk of ice and dust that travels in a very long orbit around the sun Rotation – the spinning of an object on its ...
The Evolution of the Universe: from Cosmic Soup to Earth
... Big Bang: The initial point from which the universe began developing approximately 13.7 billion years ago. Cosmic Microwave Background: the leftover energy that can be detected from the initial Big Bang. Element: a pure chemical substance which is determined by the number of protons in its nu ...
... Big Bang: The initial point from which the universe began developing approximately 13.7 billion years ago. Cosmic Microwave Background: the leftover energy that can be detected from the initial Big Bang. Element: a pure chemical substance which is determined by the number of protons in its nu ...
Science 9: Unit 4 Review
... 4. American astronomer Edwin Hubble noticed that the light from distant galaxies was shifted toward the red part of the spectrum. What explanation did he give for this? ...
... 4. American astronomer Edwin Hubble noticed that the light from distant galaxies was shifted toward the red part of the spectrum. What explanation did he give for this? ...
Solar System - U
... The four inner or terrestrial planets have dense, rocky compositions, few or no moons, and no ring systems. They are composed largely of refractory minerals, such as the silicates, which form their crusts and mantles, and metals, such as iron and nickel, which form their cores. Three of the four in ...
... The four inner or terrestrial planets have dense, rocky compositions, few or no moons, and no ring systems. They are composed largely of refractory minerals, such as the silicates, which form their crusts and mantles, and metals, such as iron and nickel, which form their cores. Three of the four in ...
1.1 Safety in the Science Classroom
... 10.1 The Early Universe • Until 100 years ago, scientists believed nothing ever changed in outer space. a) Using powerful telescopes, astronomers like Edwin Hubble discovered many new celestial bodies, and observed that everything in the universe was moving further apart. b) The universe expands li ...
... 10.1 The Early Universe • Until 100 years ago, scientists believed nothing ever changed in outer space. a) Using powerful telescopes, astronomers like Edwin Hubble discovered many new celestial bodies, and observed that everything in the universe was moving further apart. b) The universe expands li ...
Earth-Space Vocabulary
... • The spin of something on its axis. • It takes the Earth one day to make one rotation. (23 hours, 56 minutes) ...
... • The spin of something on its axis. • It takes the Earth one day to make one rotation. (23 hours, 56 minutes) ...
View Presentation Slides
... Stars have “life cycles”. They are “born” and they “die” but are not alive like us. Stars like the Sun “die” by “puffing” off their outer layers of gas and dust. This process creates a beautiful variety of NEBULAE in the Milky Way GALAXY. ...
... Stars have “life cycles”. They are “born” and they “die” but are not alive like us. Stars like the Sun “die” by “puffing” off their outer layers of gas and dust. This process creates a beautiful variety of NEBULAE in the Milky Way GALAXY. ...
Inner and Outer Planets
... • Pluto is much like the inner planets because it is made of rock and metal. • Pluto has only one moon and takes about 249 years to orbit the sun. • Part of Pluto’s orbit passes inside that of Neptune, so at times Neptune is the planet farthest from the sun. • Pluto was located and named in 1930, bu ...
... • Pluto is much like the inner planets because it is made of rock and metal. • Pluto has only one moon and takes about 249 years to orbit the sun. • Part of Pluto’s orbit passes inside that of Neptune, so at times Neptune is the planet farthest from the sun. • Pluto was located and named in 1930, bu ...
Chapter 24 - Cloudfront.net
... last about an hour and appear as a sudden brightening of the region above a sunspot cluster During their existence, solar flares release enormous amounts of energy, much of it in the form of ultraviolet, radio, and x-ray radiation ...
... last about an hour and appear as a sudden brightening of the region above a sunspot cluster During their existence, solar flares release enormous amounts of energy, much of it in the form of ultraviolet, radio, and x-ray radiation ...
0001 Views of Universe
... this second largest planet apart. • 2nd largest planet and 2nd largest mass. • 96% H, 3% He, less dense than water. • Rocky core is embedded in an outer core of water, methane, and ammonia. • Above the core is liquid hydrogen 21,000 km deep • Rocks, dust, and ice orbiting the planet form several lar ...
... this second largest planet apart. • 2nd largest planet and 2nd largest mass. • 96% H, 3% He, less dense than water. • Rocky core is embedded in an outer core of water, methane, and ammonia. • Above the core is liquid hydrogen 21,000 km deep • Rocks, dust, and ice orbiting the planet form several lar ...
The Solar System and the Universe
... 8. Energy is released in the core of the Sun through a process called _____________________. When this process is accompanied by high temperature within the sun it is referred to as ___________________________. 9. During thermonuclear fusion, four ________________ nuclei fuse together to form one __ ...
... 8. Energy is released in the core of the Sun through a process called _____________________. When this process is accompanied by high temperature within the sun it is referred to as ___________________________. 9. During thermonuclear fusion, four ________________ nuclei fuse together to form one __ ...
Formation of the Universe
... The universe began about 14 billion years ago as an extremely hot, dense and compact state (singularity) that underwent an extremely violent expansion. ...
... The universe began about 14 billion years ago as an extremely hot, dense and compact state (singularity) that underwent an extremely violent expansion. ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.