SES4U ~ The Formation of Our Solar Systemstudentcopy
... •Note ring-like structures within gas clouds (nebulae), surrounding a central proto-star (here in Orion Nebula) •Stars older than a few Ma don’t have proplyds, hence planets must form “rapidly” following proto-star formation. Gas giants may have formed quicker than terrestrial planets •Planet for ...
... •Note ring-like structures within gas clouds (nebulae), surrounding a central proto-star (here in Orion Nebula) •Stars older than a few Ma don’t have proplyds, hence planets must form “rapidly” following proto-star formation. Gas giants may have formed quicker than terrestrial planets •Planet for ...
File
... When a star becomes a supernova, it may for a little while outshine all the massed suns of the galaxy. The Chinese astronomers watched this happen in A.D. 1054, not knowing what it was they saw. Five centuries later, in 1572, a supernova blazed in Cassiopeia so brilliantly that it was visible in the ...
... When a star becomes a supernova, it may for a little while outshine all the massed suns of the galaxy. The Chinese astronomers watched this happen in A.D. 1054, not knowing what it was they saw. Five centuries later, in 1572, a supernova blazed in Cassiopeia so brilliantly that it was visible in the ...
Astronomy 1010
... their formation 4.5 billion years ago They carry history of the Solar system in their compositions, locations, and numbers. Asteroid means starlike, a rocky leftover Comet means hair (Greek), an icy leftover Meteor – a thing in the air (falling star) Meteorite – any piece of rock than fell to the gr ...
... their formation 4.5 billion years ago They carry history of the Solar system in their compositions, locations, and numbers. Asteroid means starlike, a rocky leftover Comet means hair (Greek), an icy leftover Meteor – a thing in the air (falling star) Meteorite – any piece of rock than fell to the gr ...
Astronomy Final Study Guide – Name: **This will be the biggest test
... 2. What was the name of the first ship in space? Why was it significant? (who launched it and why did we care??) ...
... 2. What was the name of the first ship in space? Why was it significant? (who launched it and why did we care??) ...
Discovering Asteroids Using
... Asteroids show long tails when they enter the inner solar system, whereas comets do not. ...
... Asteroids show long tails when they enter the inner solar system, whereas comets do not. ...
Characteristic Properties
... 2. Disk shape of solar system- small orbit inclination; prograde circular motion; same tilt&direction of rotation axes (almost) 3. Jovian/Terrestrial planets: low/high density, huge/small atmospheres, fast/slower rotation rates, many/few moons & rings 4. Space Debris – icy comets, rocky asteroids ...
... 2. Disk shape of solar system- small orbit inclination; prograde circular motion; same tilt&direction of rotation axes (almost) 3. Jovian/Terrestrial planets: low/high density, huge/small atmospheres, fast/slower rotation rates, many/few moons & rings 4. Space Debris – icy comets, rocky asteroids ...
Aug 2015 supplement - Hermanus Astronomy
... When the first galaxies started to form a few hundred million years after the Big Bang, the universe was full of a fog of hydrogen gas. But as more and more brilliant sources - both stars and quasars powered by huge black holes started to shine, they cleared away the mist and made the universe trans ...
... When the first galaxies started to form a few hundred million years after the Big Bang, the universe was full of a fog of hydrogen gas. But as more and more brilliant sources - both stars and quasars powered by huge black holes started to shine, they cleared away the mist and made the universe trans ...
ASTRonomy 103 - Solar Physics and Space Weather
... 14. What is the refraction of light? A the change in direction of a light ray as it reflects from a more dense material than the one in which it is traveling B the absorption of light as it traverses a dense, transparent material C the breaking of white light into its composite colors D *the change ...
... 14. What is the refraction of light? A the change in direction of a light ray as it reflects from a more dense material than the one in which it is traveling B the absorption of light as it traverses a dense, transparent material C the breaking of white light into its composite colors D *the change ...
Satellites - Deans Community High School
... As the frequency increases, the energy of the radiation also increases. This means that gamma ray telescopes (for example) pick up more astronomically ...
... As the frequency increases, the energy of the radiation also increases. This means that gamma ray telescopes (for example) pick up more astronomically ...
Galaxies - schoolphysics
... It was the biggest explosion ever and so it is called the BIG BANG. It was the beginning of the Universe. Very rapidly some of the energy from this explosion turned into small particles. These particles began to clump together to make large particles that in turn became atoms and then molecules. The ...
... It was the biggest explosion ever and so it is called the BIG BANG. It was the beginning of the Universe. Very rapidly some of the energy from this explosion turned into small particles. These particles began to clump together to make large particles that in turn became atoms and then molecules. The ...
16 October 2006
... • Elements heavier than uranium do not occur naturally at all on earth. The longest-lived example is an isotope of plutonium with a half-life of 80 million years. • Of the hundreds of isotopes with half-lives under 100 million years, only a few are found naturally on earth. These are being formed co ...
... • Elements heavier than uranium do not occur naturally at all on earth. The longest-lived example is an isotope of plutonium with a half-life of 80 million years. • Of the hundreds of isotopes with half-lives under 100 million years, only a few are found naturally on earth. These are being formed co ...
Unit 1: The Big Picture
... 4 sec-temp too low for converting energy into matter, too high to form atoms 3 minutes – nuclei can form – 25% helium nuclei, 75% hydrogen nuclei w/ small amounts of lithium and boron nuclei ...
... 4 sec-temp too low for converting energy into matter, too high to form atoms 3 minutes – nuclei can form – 25% helium nuclei, 75% hydrogen nuclei w/ small amounts of lithium and boron nuclei ...
or view
... The formation of the Sun had a dramatic effect on the temperatures across the solar nebula, introducing a temperature range that stretched from about 2000K near the Sun to less than 50K at the outer regions. The heat in the inner Solar System only allowed materials with high condensation temperature ...
... The formation of the Sun had a dramatic effect on the temperatures across the solar nebula, introducing a temperature range that stretched from about 2000K near the Sun to less than 50K at the outer regions. The heat in the inner Solar System only allowed materials with high condensation temperature ...
Chapter 20
... arisen not only on the Earth but also in other locations. The appearance of very simple organisms in Earth rocks that are 3.5 billion years old, and indirect evidence for life as far back as 3.8 billion years (not long after the end of the bombardment suffered by the newly formed Earth), suggests th ...
... arisen not only on the Earth but also in other locations. The appearance of very simple organisms in Earth rocks that are 3.5 billion years old, and indirect evidence for life as far back as 3.8 billion years (not long after the end of the bombardment suffered by the newly formed Earth), suggests th ...
The star
... stupendous clouds of mist—the stuff of unborn stars—that are scattered throughout the length of the Milky Way. On the cosmic scale, indeed, the Phoenix Nebula is a tiny thing—a tenuous shell of gas surrounding a single star. Or what is left of a star. . . The Rubens engraving of Loyola seems to mock ...
... stupendous clouds of mist—the stuff of unborn stars—that are scattered throughout the length of the Milky Way. On the cosmic scale, indeed, the Phoenix Nebula is a tiny thing—a tenuous shell of gas surrounding a single star. Or what is left of a star. . . The Rubens engraving of Loyola seems to mock ...
Chapter 15 Stars, Galaxies
... become black holes. Stars that are less massive but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass and medium-mass stars turn into red giants as they use up their fuel. They later form planetary nebulas and white d ...
... become black holes. Stars that are less massive but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass and medium-mass stars turn into red giants as they use up their fuel. They later form planetary nebulas and white d ...
File - Mrs. Ratzlaff
... ________ the Sun, but their orbits run ______________ to the planets’ orbits. The extreme _____________ orbit of comets has them _________________ as they approach the __________ and its gravity and then they can spend hundreds to __________ of years out in the depths of the solar system. Like all o ...
... ________ the Sun, but their orbits run ______________ to the planets’ orbits. The extreme _____________ orbit of comets has them _________________ as they approach the __________ and its gravity and then they can spend hundreds to __________ of years out in the depths of the solar system. Like all o ...
summary - guideposts
... The terrestrial planets may have formed slowly from the accretion of planetesimals of similar composition. Dense cores and low density crusts could have formed later by differentiation when radioactive decay heated the planet’s interiors. It is also possible that the planets formed so rapidly that t ...
... The terrestrial planets may have formed slowly from the accretion of planetesimals of similar composition. Dense cores and low density crusts could have formed later by differentiation when radioactive decay heated the planet’s interiors. It is also possible that the planets formed so rapidly that t ...
Lecture 1 - University of Maryland Astronomy
... that a high-eccentricity orbit (rather than the nearly circular one we have) would subject any life to variations too extreme to survive. Also, if the planet in question is too small it can’t retain an atmosphere and will lose its internal heat quickly. A planet that is too large might have any soli ...
... that a high-eccentricity orbit (rather than the nearly circular one we have) would subject any life to variations too extreme to survive. Also, if the planet in question is too small it can’t retain an atmosphere and will lose its internal heat quickly. A planet that is too large might have any soli ...
Formation of the Solar System . • Questions
... toward disk), skater spins a) faster, b) same, c) slower Q: If material falls toward rotation axis, material spins ___. Same foils. ...
... toward disk), skater spins a) faster, b) same, c) slower Q: If material falls toward rotation axis, material spins ___. Same foils. ...
Diameter of the Milky Way
... If protons didn’t carry electric charge, they wouldn’t be deflected when crossing a magnetic field. This would be a test for showing the hypothesis wrong. So both A and C are capable of being proved wrong, which makes them scientific. Statement B, however, has no test for wrongness. It is reasonable ...
... If protons didn’t carry electric charge, they wouldn’t be deflected when crossing a magnetic field. This would be a test for showing the hypothesis wrong. So both A and C are capable of being proved wrong, which makes them scientific. Statement B, however, has no test for wrongness. It is reasonable ...
http://earthquake.usgs.gov/learning/facts.php
... 1. T or F? One’s weight changes in outer space. Weight is dependent on gravity – gravity is dependent in part upon the distance between two objects (getting weaker with greater distance) – in outer space distance between objects (you & planet, you and star) increases, therefore weight decreases ...
... 1. T or F? One’s weight changes in outer space. Weight is dependent on gravity – gravity is dependent in part upon the distance between two objects (getting weaker with greater distance) – in outer space distance between objects (you & planet, you and star) increases, therefore weight decreases ...
Science 9 Unit 5: Space Name - Science 9
... Parallax is the apparent shift in position of a nearby object when the object is viewed from two different places. Astronomers use a star’s parallax to determine what angles to use when they triangulate the star’s distance from the Earth. The larger the baseline, the more accurate the result. The lo ...
... Parallax is the apparent shift in position of a nearby object when the object is viewed from two different places. Astronomers use a star’s parallax to determine what angles to use when they triangulate the star’s distance from the Earth. The larger the baseline, the more accurate the result. The lo ...
Small Bodies in the Solar System
... Pluto: From Planet to KBO • Until 2006, Pluto was considered to be the ninth planet in the solar system. • Beginning in 1992, Kuiper belt objects began to be discovered beyond Neptune’s orbit, some of which had similar size and composition as Pluto. • In 2006, Pluto was redefined as a “dwarf planet” ...
... Pluto: From Planet to KBO • Until 2006, Pluto was considered to be the ninth planet in the solar system. • Beginning in 1992, Kuiper belt objects began to be discovered beyond Neptune’s orbit, some of which had similar size and composition as Pluto. • In 2006, Pluto was redefined as a “dwarf planet” ...
Panspermia
Panspermia (from Greek πᾶν (pan), meaning ""all"", and σπέρμα (sperma), meaning ""seed"") is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids, comets, planetoids and, also, by spacecraft in the form of unintended contamination by microorganisms.Panspermia is a hypothesis proposing that microscopic life forms that can survive the effects of space, such as extremophiles, become trapped in debris that is ejected into space after collisions between planets and small Solar System bodies that harbor life. Some organisms may travel dormant for an extended amount of time before colliding randomly with other planets or intermingling with protoplanetary disks. If met with ideal conditions on a new planet's surfaces, the organisms become active and the process of evolution begins. Panspermia is not meant to address how life began, just the method that may cause its distribution in the Universe.Pseudo-panspermia (sometimes called ""soft panspermia"" or ""molecular panspermia"") argues that the pre-biotic organic building blocks of life originated in space and were incorporated in the solar nebula from which the planets condensed and were further —and continuously— distributed to planetary surfaces where life then emerged (abiogenesis). From the early 1970s it was becoming evident that interstellar dust consisted of a large component of organic molecules. Interstellar molecules are formed by chemical reactions within very sparse interstellar or circumstellar clouds of dust and gas. The dust plays a critical role of shielding the molecules from the ionizing effect of ultraviolet radiation emitted by stars.Several simulations in laboratories and in low Earth orbit suggest that ejection, entry and impact is survivable for some simple organisms.