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Our Solar System
Our Solar System

... Discovered through math 7 known moons Triton largest moon Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...


... method (see graphic), which picks up slight wobbles in a star’s position caused by the gravitational tug of an orbiting planet. This method is most likely to find large planets close to their stars, however. Transits are better suited to finding something more like Earth in size and orbit. So far, 5 ...
practice exam #1
practice exam #1

... 3. When Eratosthenes calculated Earth’s circumference, he used measurements of shadows cast at two different cities on the same day, and a. b. c. d. e. f. g. ...
Conversations with the Earth
Conversations with the Earth

... Jill Tarter and Margaret Turnbull • These Sun-like, habitable stars have just the right distance, constancy, and temperature to qualify in a forthcoming enlarged radio search. ...
Temperature and Formation of Our Solar System
Temperature and Formation of Our Solar System

... Freezing point of water = 273K. Jupiter, Saturn, Uranus, Neptune, and Pluto all formed at temperatures colder than this. ...
Astronomy Test Review
Astronomy Test Review

... 8. Why can we see some stars all year round, but others only during certain seasons? 9. Draw what the moon looks like in each of the following phases: a. Waxing crescent b. Waning gibbous c. First quarter 10. Why is it that we can see Jupiter, Mars and Saturn very well during some nights, but Venus ...
Astronomy Unit Notes - sciencepowerpoint.com
Astronomy Unit Notes - sciencepowerpoint.com

... Dark Matter – A hypothetical form of matter that is believed to make up 90% of the universe; it is invisible (does not absorb or emit light) Dark Energy – A hypothetical form of energy that permeates space and exerts a negative pressure, which would have gravitational effects to account for the diff ...
Review Sheet
Review Sheet

... cold place. • Venus: retrograde rotation, Atmosphere composition(97%CO2 , 4%N2 ), day temperature vs night temperature. • Mars: water[where has it been(rivers, oceans, ice caps), where is it now (maybe ice caps, really an open question), what form(once was liquid, now pressure to low and it can be a ...
Name Period ______ Astronomy Unit Study Guide 1. _____
Name Period ______ Astronomy Unit Study Guide 1. _____

... 16. What is the reason for Earth’s seasons? How long does it take the Earth to orbit the sun once? 17. Define: ...
Document
Document

... Within our solar system (http://astrobiology.nasa.gov/tags/life-in-our-solar-system/) Mars: Evidence of flowing water on the surface of Mars within the past few years. Europa (moon of Jupiter): Has a salty ocean under a thick ice shell. Hyperion (moon of Saturn): Has craters containing hydrocarbons. ...
SOL Study Book
SOL Study Book

... 3. Locations closets to the equator stay hot or warm all year long. Characteristics of the Earth 1. The Earth is one of the eight planets that revolve around the sun. 2. The Earth is the third planet from the sun and one of the four terrestrial inner planets. 3. The Earth is about 150 million kilome ...
Рабочий лист 1.2
Рабочий лист 1.2

... I'm a giant gas planet out in space, There are bands or stripes all over my face. When it comes to size, I'm number two, I have bright rings. That's an easy clue. Which planet am I? __________________________________ 2) Прочитайте текст. Meteorites are bits of rocks or metal that fall from space. Th ...
Planets & Motions
Planets & Motions

... Neptune- rings, active atmosphere, 1, 000+ km/hr winds, Great Dark Spot, 13 moons, nitrogen and methane atmosphere, low temps = -200oC. ...
Solar System
Solar System

... twelve smaller named moons and twentythree more recently discovered but not named moons. We’ll take a look at the four large Galilean moons which were first observed by Galileo in 1610. ...
Earth Science
Earth Science

... twelve smaller named moons and twentythree more recently discovered but not named moons. We’ll take a look at the four large Galilean moons which were first observed by Galileo in 1610. ...
Earth Science - MrsHeatonsWiki
Earth Science - MrsHeatonsWiki

... It is slightly smaller than the Earth’s moon. The surface strongly resembles images of sea ice on Earth. There may be a liquid water sea under the crust. Europa is one of the five known moons in the solar system to have an atmosphere. ...
Early Observers (The Beginnings of Astronomy)
Early Observers (The Beginnings of Astronomy)

... Theory incorrect, but made many precise observations of planets and stars. ...
The Milky Way
The Milky Way

... Johannes Kepler (1571 – 1630) • Used the precise observational tables of Tycho Brahe (1546 – 1601) to study planetary motion mathematically. • Found a consistent description by abandoning both ...
Our Solar System - Hardeman School
Our Solar System - Hardeman School

...  There is very little oxygen and water vapor ...
Extrasolar planets
Extrasolar planets

... For the Earth : v = 0.09 m/s and T = 1 year With a detection limit of 3 m/s, this makes Earth-like planets very hard to find. The first discovery of any extrasolar planet was in 1995 for the star 51 Peg. Now more than 120 Jupiter-size planets have been found around other stars using this method. The ...
introduction to astronomy phys 271
introduction to astronomy phys 271

... • They never set, 23 hours 56 minute clock ...
Final Exam Earth science
Final Exam Earth science

... Main sequence stars. Hertzsprung-Russell diagram, a graph used by astronomers. It shows a relationship between surface temperature and brightness. Most stars (90%) form a diagonal band called the main sequence stars. In the main sequence, surface temperature increases as brightness increases. Our su ...
Is Anyone Out There? Solving the Drake Equation
Is Anyone Out There? Solving the Drake Equation

... But tidal interactions… ...
Planets Powerpoint File
Planets Powerpoint File

... orbital path of debris. (This is where Pluto failed) ...
How our Solar System (and Moon) came to be
How our Solar System (and Moon) came to be

... How our Solar System (and Moon) came to be… ...
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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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