UV SURFACE ENVIRONMENT OF EARTH
... Introduction: The UV environment of a host star affects the surface UV environment for Earth-like planets through geological time and therefore the conditions for the origin and evolution of life. Depending on the intensity, UV radiation can be both useful and harmful to life as we know it. UV radia ...
... Introduction: The UV environment of a host star affects the surface UV environment for Earth-like planets through geological time and therefore the conditions for the origin and evolution of life. Depending on the intensity, UV radiation can be both useful and harmful to life as we know it. UV radia ...
Name________________________________________
... releasing __________ and _______________. Clouds of gas and dust form a fuzzy outer layer called a _______________. A comet’s coma has a solid inner core called a ____________________. The nucleus and coma (the comet’s head) is the _________________________ part of a comet. The comet’s tail… As a co ...
... releasing __________ and _______________. Clouds of gas and dust form a fuzzy outer layer called a _______________. A comet’s coma has a solid inner core called a ____________________. The nucleus and coma (the comet’s head) is the _________________________ part of a comet. The comet’s tail… As a co ...
Name - MIT
... 5) During its main sequence lifetime, the sun fuses hydrogen into ____________. A) helium B) carbon C) iron D) carbon E) hydrogen 6) Which of these following terms is not used as a technique (or is part of a technique) to determine distances to objects in the universe? A) B) C) D) E) ...
... 5) During its main sequence lifetime, the sun fuses hydrogen into ____________. A) helium B) carbon C) iron D) carbon E) hydrogen 6) Which of these following terms is not used as a technique (or is part of a technique) to determine distances to objects in the universe? A) B) C) D) E) ...
Slide 1
... mean you may think it's a long way down the road to [Smith’s], but that's just peanuts to space." -The Hitchhiker’s Guide ...
... mean you may think it's a long way down the road to [Smith’s], but that's just peanuts to space." -The Hitchhiker’s Guide ...
Dust Clouds at the Center of Milky Way
... • In our Milky Way and in external galaxies, the space between the stars is filled with an interstellar medium consisting of gas and dust ...
... • In our Milky Way and in external galaxies, the space between the stars is filled with an interstellar medium consisting of gas and dust ...
File
... 11. Explain characteristics (size, surface, distance from sun, rings, moons) that all inner planets share. Explain characteristics (size, surface, distance from sun, rings, moons) shared by the outer planets. See your notes! Inner planets are terrestrial or rocky surface: Earth one moon, Mars (2 moo ...
... 11. Explain characteristics (size, surface, distance from sun, rings, moons) that all inner planets share. Explain characteristics (size, surface, distance from sun, rings, moons) shared by the outer planets. See your notes! Inner planets are terrestrial or rocky surface: Earth one moon, Mars (2 moo ...
Scale Model of the Solar System
... Scale Model of the Solar System Grade: 6-12 Subject: Space science and measurement conversion Purpose: Scientists us astronomical units (AU) when measuring distances in the solar system, simply because distances measured in kilometers can get very large. Look at the following table to get an idea of ...
... Scale Model of the Solar System Grade: 6-12 Subject: Space science and measurement conversion Purpose: Scientists us astronomical units (AU) when measuring distances in the solar system, simply because distances measured in kilometers can get very large. Look at the following table to get an idea of ...
File
... key role in regulating the growth of galaxies by limiting the total amount of additional matter added. During this stage galaxies undergo a burst of star formation. The evolution of galaxies can be significantly affected by interactions and collisions. During some of these collisions some of the gal ...
... key role in regulating the growth of galaxies by limiting the total amount of additional matter added. During this stage galaxies undergo a burst of star formation. The evolution of galaxies can be significantly affected by interactions and collisions. During some of these collisions some of the gal ...
MIT
... • The Oort Cloud has never been seen directly. • Appears to exist because comets with extremely long orbits sometimes pass near the Sun and then head back out again. • The Oort cloud could have a trillion icy objects. ...
... • The Oort Cloud has never been seen directly. • Appears to exist because comets with extremely long orbits sometimes pass near the Sun and then head back out again. • The Oort cloud could have a trillion icy objects. ...
Standard 1 Information Sheet
... other species 65 million years ago. Through videos or classroom demonstrations, teachers can introduce simulations of impacts of asteroids. Teachers can model cratering by carefully throwing marbles of different masses (weights) into soft clay or flour at different velocities. Students can observe t ...
... other species 65 million years ago. Through videos or classroom demonstrations, teachers can introduce simulations of impacts of asteroids. Teachers can model cratering by carefully throwing marbles of different masses (weights) into soft clay or flour at different velocities. Students can observe t ...
Aust Curriculum Connections 2012
... tonight’s sky. The other planets: orbits and time for a “year”. What are the planets made of? Could I land on Jupiter? How many “years” old would I be if I lived on other planets? How long would it take to travel there? Why are some bodies covered in craters? Why not the Earth? The Southern Cross as ...
... tonight’s sky. The other planets: orbits and time for a “year”. What are the planets made of? Could I land on Jupiter? How many “years” old would I be if I lived on other planets? How long would it take to travel there? Why are some bodies covered in craters? Why not the Earth? The Southern Cross as ...
File - SOCIAL SCIENCE
... - It’s the centre of the solar system. - It give us light and heat, that are vital on our planet. ...
... - It’s the centre of the solar system. - It give us light and heat, that are vital on our planet. ...
EARTH LIKE PLANETS SHOULD BE QUITE COMMON IN THE
... Now a new study by Northwestern University astronomers, using recent data from the 300 planets discovered orbiting other stars, turns that view on its head. "These other planetary systems don't look like the solar system at all," said Prof Frederic Rasio, senior author of a study in the journal Scie ...
... Now a new study by Northwestern University astronomers, using recent data from the 300 planets discovered orbiting other stars, turns that view on its head. "These other planetary systems don't look like the solar system at all," said Prof Frederic Rasio, senior author of a study in the journal Scie ...
Intro to Astronomy
... • Nicholas Copernicus with the help of Galileo proposed a model where the sun is the center of solar system. This model was not well received, but it did explain the retrograde motion better then Ptolemy’s model. • Johannes Kepler added to Copernicus’s by changing the orbital paths to elliptical ins ...
... • Nicholas Copernicus with the help of Galileo proposed a model where the sun is the center of solar system. This model was not well received, but it did explain the retrograde motion better then Ptolemy’s model. • Johannes Kepler added to Copernicus’s by changing the orbital paths to elliptical ins ...
Life in the Universe - University of Georgia
... Astronomical distances Although we could express all sizes and distances in astronomy using one unit (e.g., meter), it is oftentimes more convenient to use different units scale of planetary systems A.U. average distance between stars parsec or light-year AU = astronomical unit = averag ...
... Astronomical distances Although we could express all sizes and distances in astronomy using one unit (e.g., meter), it is oftentimes more convenient to use different units scale of planetary systems A.U. average distance between stars parsec or light-year AU = astronomical unit = averag ...
hot
... A grenade expands because it gets very hot at the centre (thanks to the rapid chemical reactions of the explosive material in its core). This creates a huge outward pressure, so the grenade fractures and explodes into the surrounding lowerdensity space. By contrast, the universal expansion requires ...
... A grenade expands because it gets very hot at the centre (thanks to the rapid chemical reactions of the explosive material in its core). This creates a huge outward pressure, so the grenade fractures and explodes into the surrounding lowerdensity space. By contrast, the universal expansion requires ...
Earth in space
... use plus (linear) and times (logarithmic) scales appropriately to describe distances on Earth and in space ...
... use plus (linear) and times (logarithmic) scales appropriately to describe distances on Earth and in space ...
Stars and the Sun
... – Big enough to swallow first 3 planets – Uses He other elements for about 10 million years ...
... – Big enough to swallow first 3 planets – Uses He other elements for about 10 million years ...
star
... large that the unit used to measure distance is a light-year Light-year – the distance light will travel in a vacuum in one year 1light-year = 9,460,730,472,580.8 km (9.5x1012km) or 5,878,625,373,183.608 miles (5.9x1012mi) ...
... large that the unit used to measure distance is a light-year Light-year – the distance light will travel in a vacuum in one year 1light-year = 9,460,730,472,580.8 km (9.5x1012km) or 5,878,625,373,183.608 miles (5.9x1012mi) ...
Glossary - Sky Science
... a stream of charged particles ejected into space from the surface of the sun. The solar wind blows past Earth constantly at speeds of about 300 kilometers per second, but a flare or other violent activity can speed the wind to 1000 kilometers per second and reach beyond the orbit of Uranus. The magn ...
... a stream of charged particles ejected into space from the surface of the sun. The solar wind blows past Earth constantly at speeds of about 300 kilometers per second, but a flare or other violent activity can speed the wind to 1000 kilometers per second and reach beyond the orbit of Uranus. The magn ...
Slide 1
... they are the most luminous, powerful, and energetic objects known in the universe. They tend to inhabit the very centers of active young galaxies ...
... they are the most luminous, powerful, and energetic objects known in the universe. They tend to inhabit the very centers of active young galaxies ...
AST 1002 Fall 2014 Midterm Exam Version 1
... 46) What causes the apparent retrograde motion of the planets? A) When planets are farther from the Sun, they move slower than when they are nearer the Sun; it is during this slower period that they appear to move backwards. B) Apparent retrograde motion is an illusion created by turbulence in Eart ...
... 46) What causes the apparent retrograde motion of the planets? A) When planets are farther from the Sun, they move slower than when they are nearer the Sun; it is during this slower period that they appear to move backwards. B) Apparent retrograde motion is an illusion created by turbulence in Eart ...
gravity
... In the diagram , if we call gravitational force exerted on the apple action, what is the reaction force according to Newton’s 3rd law? a. It is the apple gravitationally pulling on the Earth. b. It is the apple pressing on the table. c. The apple exerts no reaction force. d. It is the table support ...
... In the diagram , if we call gravitational force exerted on the apple action, what is the reaction force according to Newton’s 3rd law? a. It is the apple gravitationally pulling on the Earth. b. It is the apple pressing on the table. c. The apple exerts no reaction force. d. It is the table support ...
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.