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Life Cycle of Stars
Life Cycle of Stars

... core collapses and the rest of the star starts to collapse in after it, but then it bounces off. There is a huge shock wave and in just a second: BANG! 20. The outer parts of this massive star are blasted off into space in a huge Supernova explosion. 21. These Supernova explosions are so powerful th ...
Teaching Text Structure with Understanding the Scale of the Universe
Teaching Text Structure with Understanding the Scale of the Universe

... development of scientsits' expanding ideas of the vastness of space. One technique for investigating other galaxies was to measure stars' brightness to determine distances in space. Another very important tool was the use of the Hubble Telescope in space for clearer photos of other galaxies deep in ...
Grade 5 CPSD Science Curriculum Guide
Grade 5 CPSD Science Curriculum Guide

... Class Discussion, Public charting or individual student journal responses Explore ...
Star and Planet Formation - Homepages of UvA/FNWI staff
Star and Planet Formation - Homepages of UvA/FNWI staff

... 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should observe parallaxes for the fixed stars. While the first two can actually be attributed to an Figure 1.1: This is a montage view ...
The cosmic distance ladder
The cosmic distance ladder

... distances to planets, this would give a measurement of the AU. ...
Chapter 4
Chapter 4

... – Tycho provided the data needed to improve this model – Kepler found a model that fit Tycho’s data ...
Detection and spectroscopy of exo-planets like Earth J.R.P. Angel
Detection and spectroscopy of exo-planets like Earth J.R.P. Angel

... thermal emission should be directly detectable, and thermal spectra could identify the strong features of carbon dioxide, water and ozone at the levels seen in Earth. But the very close angular separation ('4). 1 arcsec) and huge brightness difference (4O7) between a star and such a planet present a ...
PowerPoint
PowerPoint

... • From January to July, the position of star A, when viewed from an observer on Earth, appeared to move a certain amount with respect to the distant stars. In class we used the diagram below to determine how the observer's view would change throughout the year. Suppose Earth's orbital distance shrun ...
Chapter 8
Chapter 8

... • 2. The law of areas: A line that connects the planet to the Sun sweeps out equal areas in the plane of the planet’s orbit in equal time intervals • 3. The law of periods: The square of the period of any planet is proportional to the cube of the semimajor axis of its orbit ...
ASTR 104.3 - University of Saskatchewan
ASTR 104.3 - University of Saskatchewan

... Module 7: The Habitable Zone – Venus, Earth and Mars 1. Explore the formation, evolution and physical properties of Venus, Earth, and Mars 2. Contrast Earth’s atmosphere with the atmospheres of Venus and Mars 3. Evaluate the evidence that Venus and Mars once had atmospheres similar to Earth Module 8 ...
Study Guide Beginning Astronomy
Study Guide Beginning Astronomy

... Nearby galaxies have distances measured in millions of light-years. The most distant galaxies we can possibly detect are at distances of about 13 billion light-years. When observing them we are looking 13 billion years into the past. ...
Useful equations - Department of Physics and Astronomy
Useful equations - Department of Physics and Astronomy

... is the distance between star and the edge of the habitable zone which corresponds with temperature T – in whatever system of units – and r [AU ] is that distance expressed in astronomical units (AU), the distance between Earth and Sun. ...
Deep Space Objects
Deep Space Objects

... actually tear a hole in the ‘stuff’ that space and time are made of (a ‘fabric’ called space-time), creating a deadly vortex that almost nothing – usually not even light – can escape. This is known as a black hole. One scientist once likened a black hole to “an object that dug a hole, jumped in the ...
Chapter 28 Stars and Their Characteristics
Chapter 28 Stars and Their Characteristics

... bright a star “appears” to be from Earth. The Apparent Magnitude of a star is affected by Absolute- Magnitude (Volume x Luminosity) and Distance from Observer. Betelgeuse, one of the brightest stars in the Universe, does not appear to be as bright as our Sun, because of its distance from us compared ...
university of alaska southeast teacher work sample submitted to
university of alaska southeast teacher work sample submitted to

... students percentages by taking the total number of correct per subgroup and dividing by possible total to determine the percentages. Mastery level would be 85 percent or higher. An example would be take the objective: understand the solar system and components. If “Student A” forgot to label the ast ...
Stars Unit 1-2: Stars
Stars Unit 1-2: Stars

... • Scientists use spectral analysis to determine the composition of stars. – Spectral analysis is a process that uses a tool called a spectroscope to separate the different wavelengths of light coming from a star. – By observing which wavelengths are ...
IS Chapter 14 Notes
IS Chapter 14 Notes

... Phases of the moon are the different shapes of the moon that change daily caused by the motions and positions of the moon around the Earth and the Earth around the sun. new moon - when the moon is in between the sun and Earth with no reflected sun light reaching Earth (all reflected sunlight returns ...
The cosmic distance ladder
The cosmic distance ladder

... distances to planets, this would give a measurement of the AU. ...
galaxies and stars - Valhalla High School
galaxies and stars - Valhalla High School

... • The Milky Way is the galaxy in which our solar system is located. • A galaxy is a giant structure that contains billions of stars. • The farther away a galaxy is from us, the faster it is moving. • It takes 2 million years for light from the Andromeda galaxy to reach earth. • Astronomers have cla ...
Test#4
Test#4

... c) the early Solar system was made up only of Hydrogen and Helium d) the Sun burns them up 19. All the planets outside our Solar system have been detected by a) Hubble Space Telescope b) Radar c) gravitation perturbations of spacecraft d) Doppler effects in stellar spectra 20. Why do stars evolve a) ...
PDF Format
PDF Format

... skyy 16th to 18th century AD D: unmapped regions off sky filled in ...
Is our solar system unique?
Is our solar system unique?

... • Look at our own solar system, and think about how it might have formed • Look at other solar systems while they form • Look for and study other solar systems • Create computer models and see if you can produce a solar system ...
How did the Solar System form?
How did the Solar System form?

... •  Look at our own solar system, and think about how it might have formed •  Look at other solar systems while they form •  Look for and study other solar systems •  Create computer models and see if you can produce a solar system ...
5th Grade Questions
5th Grade Questions

... oil, gas or coal ...
ppt
ppt

... Previously… on Origins: Is Earth a special/unique place? • What does the question mean? • How do we find planets? • What are habitable planets? ...
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Extraterrestrial life



Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.
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