Our Incredible Universe
... billions of stars) that characterize the large-scale universe. In other words, the weird and wonderful microscopic principles of quantum physics are magnified and writ large in the heavens probed by our largest telescopes. If you are wondering how all this can possibly be, you aren’t alone. I warne ...
... billions of stars) that characterize the large-scale universe. In other words, the weird and wonderful microscopic principles of quantum physics are magnified and writ large in the heavens probed by our largest telescopes. If you are wondering how all this can possibly be, you aren’t alone. I warne ...
Lecture7 - UCSB Physics
... • 8.49 – compare the spectra from a planet and its star • 8.50 – estimate distance between a star and its planet from a picture then calculate the orbital period. ...
... • 8.49 – compare the spectra from a planet and its star • 8.50 – estimate distance between a star and its planet from a picture then calculate the orbital period. ...
The Sun
... the sun to move very fast, generating a tremendous pressure pushing outward from the core. – This pressure would cause the sun to explode if it weren’t balanced by an equal and opposite force The balancing force is gravity. – The weight of matter pushing inward and the outward pushing pressure are b ...
... the sun to move very fast, generating a tremendous pressure pushing outward from the core. – This pressure would cause the sun to explode if it weren’t balanced by an equal and opposite force The balancing force is gravity. – The weight of matter pushing inward and the outward pushing pressure are b ...
Electromagnetic spectrum
... becomes visible because it refracts and reflects light from a nearby star A dark nebula is an interstellar molecular cloud whose dust blocks light from stars on the other side of it ...
... becomes visible because it refracts and reflects light from a nearby star A dark nebula is an interstellar molecular cloud whose dust blocks light from stars on the other side of it ...
astronomy 101 from
... Humans have always been sky watchers. Our earliest ancestors connected the motions of the Sun, Moon, and stars to the passage of time and the yearly change of seasons. Eventually, they learned to predict and chart celestial motions. They used that information to create timepieces and calendars. Accu ...
... Humans have always been sky watchers. Our earliest ancestors connected the motions of the Sun, Moon, and stars to the passage of time and the yearly change of seasons. Eventually, they learned to predict and chart celestial motions. They used that information to create timepieces and calendars. Accu ...
Astronomy and Cosmology - spring 2003 - final exam
... A) midnight B) sunrise C) noon D) sunset 22. Which of the following will never be seen from Earth as a crescent? A) Mercury B) Venus C) Mars D) Moon 23. The Moon rises later each day because each day it has moved farther along its orbit around Earth (except for observers at polar latitudes, for whom ...
... A) midnight B) sunrise C) noon D) sunset 22. Which of the following will never be seen from Earth as a crescent? A) Mercury B) Venus C) Mars D) Moon 23. The Moon rises later each day because each day it has moved farther along its orbit around Earth (except for observers at polar latitudes, for whom ...
August 29 - Astronomy
... the universe cooled to about 3000 K and electrons could remain bound to protons forming the first neutral atoms. ...
... the universe cooled to about 3000 K and electrons could remain bound to protons forming the first neutral atoms. ...
15.2 Characteristics of Stars
... • A light-year is the distance a particle of light would travel in one year’s time. It is a measure of distance. Light travels at 186,000 miles per second or 3 X 108 meters per second. In one year, light would travel 5,860,000,000,000 miles or 9,500,000,000,000,000 meters. ...
... • A light-year is the distance a particle of light would travel in one year’s time. It is a measure of distance. Light travels at 186,000 miles per second or 3 X 108 meters per second. In one year, light would travel 5,860,000,000,000 miles or 9,500,000,000,000,000 meters. ...
7th Grade Astronomy Study Guide
... a. the study of the makeup of stars b. the study of space travel c. the study of the universe’s origin, structure, and future d. the study of the solar system ____ 40. What is an imaginary point directly above an observer’s head? a. celestial sphere c. zenith b. altitude d. right ascension ____ 41. ...
... a. the study of the makeup of stars b. the study of space travel c. the study of the universe’s origin, structure, and future d. the study of the solar system ____ 40. What is an imaginary point directly above an observer’s head? a. celestial sphere c. zenith b. altitude d. right ascension ____ 41. ...
Topic 1 – Introduction to Earth`s Changing Environment
... - The universe started about 13.7 billion years ago with the Big Bang ( 2 evidences of this are the Doppler Red Shift and background microwave radiation. The red shift also supports that the universe is still _________________. - The ___________ __________________ is about 4.6 billion years old - We ...
... - The universe started about 13.7 billion years ago with the Big Bang ( 2 evidences of this are the Doppler Red Shift and background microwave radiation. The red shift also supports that the universe is still _________________. - The ___________ __________________ is about 4.6 billion years old - We ...
Name
... 11. Explain the big bang theory in as much detail as possible. Make sure you answer the following questions: 1. Is the universe expanding or getting smaller? 2. What evidence did the WMAP provide scientists about the big bang theory? 3. Is the universe cooling or getting hotter? 4. How has the amou ...
... 11. Explain the big bang theory in as much detail as possible. Make sure you answer the following questions: 1. Is the universe expanding or getting smaller? 2. What evidence did the WMAP provide scientists about the big bang theory? 3. Is the universe cooling or getting hotter? 4. How has the amou ...
Tour of the Universe
... ● 6 of the planets have moons orbiting them. Them bigger ones have more moons than the smaller ones. ● Earth's moon was formed 4.5 billion years ago from material ejected when a collision occurred between a Marssize object and the Earth. Asteroids ● Rocky objects orbiting the Sun with million ...
... ● 6 of the planets have moons orbiting them. Them bigger ones have more moons than the smaller ones. ● Earth's moon was formed 4.5 billion years ago from material ejected when a collision occurred between a Marssize object and the Earth. Asteroids ● Rocky objects orbiting the Sun with million ...
printer-friendly sample test questions
... D. has life. 4. Earth is part of the solar system because it A. rotates around the Sun. B. revolves around the Sun. C. has a moon. D. has life. 5. Which of the following characteristics makes Earth unique compared to the other planets in the solar system? A. Life B. Water C. Orbital Path D. Rotation ...
... D. has life. 4. Earth is part of the solar system because it A. rotates around the Sun. B. revolves around the Sun. C. has a moon. D. has life. 5. Which of the following characteristics makes Earth unique compared to the other planets in the solar system? A. Life B. Water C. Orbital Path D. Rotation ...
Lecture 1: Nucleosynthesis, solar composition, chondrites, volatility
... based on: 1) the observation of Edwin Hubble (1889-1953) that the galaxies were moving away from us 2) background cosmic microwave radiation can be “heard” – discovered by Penzias and Wilson ...
... based on: 1) the observation of Edwin Hubble (1889-1953) that the galaxies were moving away from us 2) background cosmic microwave radiation can be “heard” – discovered by Penzias and Wilson ...
Formation of the Solar System
... cosmologists in the 1950s and 1960s, the number of supporters decreased markedly in the late 1960s with the discovery of the cosmic microwave background radiation, and today only a very small number of supporters remain. The steady state theory asserts that although the universe is expanding, it ne ...
... cosmologists in the 1950s and 1960s, the number of supporters decreased markedly in the late 1960s with the discovery of the cosmic microwave background radiation, and today only a very small number of supporters remain. The steady state theory asserts that although the universe is expanding, it ne ...
Episode Synopses - Telco Productions, Inc.
... It’s colder than you can imagine on Pluto, hundreds of degrees below zero. We visit the observatory where Pluto was discovered to see the unusual machine that spotted the tiny planet. Pluto is the only major body in the solar system not yet explored by a space probe but we get a clue to what it migh ...
... It’s colder than you can imagine on Pluto, hundreds of degrees below zero. We visit the observatory where Pluto was discovered to see the unusual machine that spotted the tiny planet. Pluto is the only major body in the solar system not yet explored by a space probe but we get a clue to what it migh ...
... waning- when the moon is getting smaller/less light. waxing- when the moon is getting larger/brighter. telescope- a tool that makes objects appear larger. elliptical- an oval/egg shaped orbit. lunar- means moon. Pluto- a former planet that is the smallest and farthest in our solar system. Jupiter- l ...
Can we expect to find “Our Air” anywhere else in the Universe?
... Planet hunting mission it is looking for Earth-like atmospheres • Kepler has a much higher probability of detecting Earthlike planets than the Hubble Space Telescope, since it has a much larger field of view. • Of the approximately half million stars in Kepler's field of view, around 150,000 stars w ...
... Planet hunting mission it is looking for Earth-like atmospheres • Kepler has a much higher probability of detecting Earthlike planets than the Hubble Space Telescope, since it has a much larger field of view. • Of the approximately half million stars in Kepler's field of view, around 150,000 stars w ...
Formation of Earth PowerPoint
... The red-orange area at the center represents the brightest region, which contains the young star It is surrounded by the cooler, dusty disk, which appears as yellow, green and blue The diameter of the disk is about 20 times larger than our entire solar system ...
... The red-orange area at the center represents the brightest region, which contains the young star It is surrounded by the cooler, dusty disk, which appears as yellow, green and blue The diameter of the disk is about 20 times larger than our entire solar system ...
Questions For Review KEY
... galaxies. This phenomenon of galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy. Through a calculation involving the distance of far-off clusters and the red shift, a final e ...
... galaxies. This phenomenon of galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy. Through a calculation involving the distance of far-off clusters and the red shift, a final e ...
The Sun and planets
... On our stage, the role of main actor cannot but be conferred to the Sun, a star like many others in space, but very special for us because from the remains of its formation all the planets and the smaller bodies that rotate around it, and of which we are a part, have originated. The Sun is so big th ...
... On our stage, the role of main actor cannot but be conferred to the Sun, a star like many others in space, but very special for us because from the remains of its formation all the planets and the smaller bodies that rotate around it, and of which we are a part, have originated. The Sun is so big th ...
Content Clarification for Modeling the Universe: Earth and Space
... temperature, and age, but they appear to be made up of the same elements that are found on the earth and to behave according to the same physical principles. Unlike the sun, most stars are in systems of two or more stars orbiting around one another. • On the basis of scientific evidence, the univers ...
... temperature, and age, but they appear to be made up of the same elements that are found on the earth and to behave according to the same physical principles. Unlike the sun, most stars are in systems of two or more stars orbiting around one another. • On the basis of scientific evidence, the univers ...
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.