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Word Pro - Smvocab
Word Pro - Smvocab

... Fixed Stars - those stars and other heavenly bodies that maintain fixed patterns in the sky. Hypothesis - an unproved theory tentatively accepted to explain certain facts. Magnification - the apparent increase in size of an object viewed with a lens. Magnitude - the degree of brightness of a star. M ...
NOTES April 21, 2008 Earth Science – 6th Grade Mrs. Elliott
NOTES April 21, 2008 Earth Science – 6th Grade Mrs. Elliott

... explosion. They are extremely luminous and cause a burst of radiation that may briefly outshine an entire galaxy before fading from view over several weeks or months. During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span.[1] The explosion expels ...
Tutorial - TIL BIRNSTIEL
Tutorial - TIL BIRNSTIEL

... • In a real mission, the astrometric precision depends on the magnitude of the star. The future mission GAIA will have an astrometric precision of 7 µas, but only for stars brighter than 10 mag. What would be the maximum distance at which you could detect Jupiter with that precision? What would be t ...
Understand Planetary Motion
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Word doc - UC

... star system exactly in the plane of Earth’s orbit, the Sun’s light would be dimmed by 100 parts per million—a hundredth of a percent—for about 12 hours once every 365 days.) Although Kepler identified some 3,000 planet candidates of all sizes orbiting stars of all colors and luminosities—some quite ...
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Planet Powerpoint

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Another Earth in the Universe

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Benchmark One Study Guide: Science Benchmark Wed

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For Creative Minds - Arbordale Publishing

... live under ice in the Antarctic, in the hot geysers of Yellowstone, in dark underground caves, or even deep in the ocean. There are even a few bacteria that don’t need oxygen! Some scientists are listening for signs of human-like (intelligent) life on planets in other solar systems. By using radio a ...
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Our Universe - Etiwanda E
Our Universe - Etiwanda E

... The small pieces of rock from comets moving through space are called meteoroids.  A meteoroid that burns up in Earth’s atmosphere is called a meteor.  A piece of a large meteoroid that does not burn up but hits Earth is called a meteorite. ...
A Census of the Solar System
A Census of the Solar System

... 1. Planets and their satellites all lie in the same plane - the ecliptic – to within a few degrees 2. Sun’s rotational equator aligned with ecliptic 3. Planetary orbits are nearly circular ellipses 4. Planets all revolve in same W -> E direction 5. Sun and planets all rotate on axes in same W –E dir ...
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... Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Terra. Home to millions of species, including humans, Earth is the only place in the universe where life is known to exis ...
The Solar System
The Solar System

...  The Solar System is located within one of the outer arms of Milky Way  which contains about 200 billion stars.  For many thousands of years, humanity, with a few notable exceptions,  did not recognize the existence of the Solar System.  People believed the Earth to be stationary at the centre ...
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Solar System

... star to Earth. • The Sun is made out of helium and hydrgen. ...
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...  Kept most of Brahe’s observations and put them to exceptional use.  Discovered three laws of planetary motion 1. Planets orbit the sun (center) in an elliptical path as opposed to a circular path 2. The radius vector describes equal areas and equal times—TRANSLATION—the planets must continuously ...
Astronomy Basics
Astronomy Basics

... Beyond the frost line, planetesimals can grow from rock and ice. This leads to the formation of “planetary cores”, which are rocky/icy planetesimals around 10x as massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
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The Solar System Planets, Moons and Other Bodies Mercury Venus

... Thin atmosphere, mostly CO2 Strong evidence for liquid water in past Numerous space probes ...
Solar System Vocab terms geocentric — discredited theory that
Solar System Vocab terms geocentric — discredited theory that

... meteoroid — dust and debris that travel through space and become meteors when they enter Earth?s atmosphere. meteor shower — large number of meteors burning upon entering Earth?s atmosphere, occurring when Earth?s orbit passes through debris from a comet. moon — natural satellite of a planet. nebula ...
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Astronomy Study Guide axis - A real or imaginary line through the

... debris - Bits and pieces of leftover dust and rocks galaxy - A large collection of stars, dust, and gas, held together by a powerful force and separated from other star systems by an extensive amount of space light-years, n. Distance traveled by light over a period of years; a measure of length used ...
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Small Planets of our Solar System (Pluto is a Dwarf Planet)

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Questions for this book (Word format)
Questions for this book (Word format)

... It took astronomers many years to realise that some of the “fuzzy patches” or “nebulae” in the night sky are actually galaxies like the Milky Way. One reason for this was that only some of the objects catalogued as “nebulae” are actually galaxies. List at least three types of nebula which are not ex ...
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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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