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Exploring the Moon and Stars
Exploring the Moon and Stars

... orientation of the Earth to the Sun shifts. • On the northern summer solstice, regions north of the equator have the greatest number of daylight hours of the year. • On the northern winter solstice, regions north of the equator have the fewest number of daylight hours of the year. • On the days of t ...
slooh celebrates dwarf planet night with ceres dancing with asteroid
slooh celebrates dwarf planet night with ceres dancing with asteroid

... same small piece of sky while also being easily visible through backyard telescopes. Both are unique.  Vesta is the only asteroid that sometimes reaches naked­eye visibility, thanks to being whiter than any  other. Ceres is spherical, possibly contains a thin atmosphere like Pluto, and, also like Pl ...
habitability - Dr. Jonti Horner
habitability - Dr. Jonti Horner

... Clearly, then, the environment around very young stars is potentially highly hostile to any life (e.g. Lundin et al. 2007). Although this may not be sufficient in itself to hinder life’s development, surely it is better to focus our initial attention on those stars that offer a gentler climate in which ...
Physics@Brock - Brock University
Physics@Brock - Brock University

... 38. At the time of Copernicus, the fact that parallax shift of the brighter stars could NOT be seen was considered evidence for which model? (a) The geocentric model. (b) The heliocentric model. 39. According to Kepler’s second law, a planet moves fastest when it is (a) closest to the Sun. (b) at th ...
Solar System 2010 - Science Olympiad
Solar System 2010 - Science Olympiad

... meteoroid is matter revolving around the sun or any object in interplanetary space that is too small to be called an asteroid or a comet.  Unofficially the size limit for an asteroid has been set at 50 meters; anything smaller than that is simply called a meteoroid. ...
a geocentric orrery
a geocentric orrery

... Last spring, a gentle lady wrote asking about the possibility that the shadow of the moon during a solar eclipse could prove geocentricity. Part of my response was presented in the article "Is the Moon's Shadow Proof of Geocentricity?" which appeared on page 8 of Biblical Astronomer number 92. In th ...
SWFAS Sept 2016 Newsletter - Southwest Florida Astronomical
SWFAS Sept 2016 Newsletter - Southwest Florida Astronomical

... September 5, 1977: Voyager 1 launched by NASA. Part of the Voyager program to study the outer Solar System, Voyager 1 launched 16 days after its twin, Voyager 2. Having operated for 38 years, 11 months and 19 days, the spacecraft still communicates with the Deep Space Network to receive routine comm ...
Solar System 2010 - Science Olympiad
Solar System 2010 - Science Olympiad

... meteoroid is matter revolving around the sun or any object in interplanetary space that is too small to be called an asteroid or a comet.  Unofficially the size limit for an asteroid has been set at 50 meters; anything smaller than that is simply called a meteoroid. ...
ASTRONOMY 12 Problem Set 1 – Due Thursday, January 21, 2016
ASTRONOMY 12 Problem Set 1 – Due Thursday, January 21, 2016

... 4) Consider an astronaut descending feet first into a ten solar mass (one solar mass is 1.99 × 1033 gm) black hole. Assume the astronaut is tall (she soon will be) and has a height of 200 cm and has a mass of 60 kg (6 × 104 gm). a) What would be the tidal force between the bottom of her feet and the ...
Reading Science Gravity 6.11B 2
Reading Science Gravity 6.11B 2

... 1) What happens when you throw a basketball up toward the hoop? If you are lucky, the ball sinks into the net, scoring two points before dropping back down to the ground. The basketball isn’t that heavy, so why doesn’t it stay up in the air when you throw it? Have you ever heard the saying, “What co ...
C - bYTEBoss
C - bYTEBoss

... Students are given the following materials: They placed orange juice, warm water, and ice in the jar and stirred with the spoon. Then the students added baking soda. Which observation is evidence of a chemical change? A The ice melted. B The water turned orange. C The materials were mixed with a sp ...
More on Stars and the Sky
More on Stars and the Sky

... Why is it not possible to measure the parallax better than 0.01” from ground based instruments, but can be done from space? What is the precession of the Earth. Which of the following would change due to precession celestial poles, north star, celestial equator, zodiac, zenith, cardinal directions o ...
Astronomy and Cosmology - spring 2003 - final exam
Astronomy and Cosmology - spring 2003 - final exam

... 23. The Moon rises later each day because each day it has moved farther along its orbit around Earth (except for observers at polar latitudes, for whom the Moon can remain above or below the horizon for 24 hours each day). On average, how much later does it rise each day (you might attempt to verify ...
Section 5 — Earth Sciences (The Solar System) Student Edition
Section 5 — Earth Sciences (The Solar System) Student Edition

... The Sun is the largest body in our solar system. Although it is an average size star, it seems huge to us. Earth, as we know it, would not exist without the Sun. Without the Sun’s light energy, plants could not make their own food. Without plants, you know what would happen to the animals! Without t ...
29 Jan: Maps of the Sky
29 Jan: Maps of the Sky

... (3) Mars right now: RA=8h52m, dec=22d (4) Saturn right now: RA=12h19m, dec=0d ...
Celestial Motions
Celestial Motions

... parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not ...
2017 Sixth Grade Science and Honors Science Pacing Guide
2017 Sixth Grade Science and Honors Science Pacing Guide

... Analyze and interpret data (e.g., tables, graphs, maps of global and regional temperatures; atmospheric levels of gases such as carbon dioxide and methane; rates of human activities) to describe how various human activities (e.g., use of fossil fuels, creation of urban heat islands, agricultural pra ...
24_Testbank - Lick Observatory
24_Testbank - Lick Observatory

... 11) One idea for interstellar spacecraft involves harnessing energy from nuclear bombs detonated in space. Answer: TRUE 12) During the 1960s and 1970s, scientists designed a spacecraft based on nuclear propulsion, but it was never built. Answer: TRUE 13) Although antimatter is an interesting theoret ...
Link again
Link again

... Chunks of ice called “comets” can be found in orbits beyond Pluto. Some comets have weird orbits that bring them close to the Earth or to the Sun and other planets. When they get close to the Sun, its heat turns some of the comet’s ice to vapor. This makes the comet appear to have a long tail. The c ...
Astronomy
Astronomy

... Chunks of ice called “comets” can be found in orbits beyond Pluto. Some comets have weird orbits that bring them close to the Earth or to the Sun and other planets. When they get close to the Sun, its heat turns some of the comet’s ice to vapor. This makes the comet appear to have a long tail. The c ...
Lecture 3a
Lecture 3a

Space Science - Madison County Schools
Space Science - Madison County Schools

... neutron star that is so dense that one teaspoon would weigh more than 600 million metric tons on Earth. If a star is so massive that the remaining core from a supernova is more than three solar masses, the gravity near this mass is so strong it creates a region where nothing can escape from, not eve ...
May 2015
May 2015

... to which our eyes are sensitive. Sunlight may look white. However, it is actually a combination of many colors which a prism can split into the spectrum of colors. This dispersion of hues can also be observed after a rain storm, when separate water droplets in the air act as cumulative prisms to ref ...
Lec 7 Copernicus I
Lec 7 Copernicus I

... Why doesn’t the earth disintegrate? If everything is going in a circle, why do bodies fall to earth? Why can’t we detect stellar parallax? Why does the moon orbit the earth? Shouldn’t we see Phases of Venus? If Copernicus and Ptolemy both use epicycles, then how do we choose between them? 8. Scriptu ...
The Search for Planet X
The Search for Planet X

... could once have been one circling our own sun. With that in mind, says Ben Bromley of the University of Utah, who collaborated with Scott Kenyon of the Harvard-Smithsonian Center for Astrophysics, “we ran some of mock-ups of what would happen to a super Earth scattered from the region where Jupiter ...
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Astrobiology



Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.
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