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Earth`s Earliest Atmosphere
Earth`s Earliest Atmosphere

... would have readily escaped. But a secondary atmosphere would have to be pushed off. It is generally agreed that the volatiles on the side of Earth that got hit were lost, but it is an open question how volatiles on the other side could be lost. Recent theory suggests that the answer depends on whet ...
The Seasons
The Seasons

... moving faster during the winter, it takes a shorter time to travel ¼ the way around the sun. Most people would expect that the earth is closer to the sun during the summer and farther from the sun in the winter. As you have seen this is not true. What factor is responsible for the degree of heating ...
Unit A: Trees and Forests
Unit A: Trees and Forests

... repair, are in a more extreme climate (cold and radiation), do not last as long as on Earth, and then become space “junk” when they quit working. 8. Mars is closer than Saturn, has some Oxygen in its atmosphere, has weather temperatures close to Earth’s, has a solid surface, and has water on it. Sat ...
Phases of the Moon - Monash University
Phases of the Moon - Monash University

... of the motion of the earth, moon and sun. Discussion can be used to challenge the existing ideas held by students and to help them to reflect on their understanding. Students to collect evidence/data for analysis. Students can make observations of the apparent shape of the moon and record how the mo ...
Introduction to Earth Science - The Federation of Galaxy Explorers
Introduction to Earth Science - The Federation of Galaxy Explorers

CH29 The Life of a Star
CH29 The Life of a Star

Frostburg State Planetarium presents
Frostburg State Planetarium presents

3. COMMENTS ON KEPLER`S NEW ASTRONOMY
3. COMMENTS ON KEPLER`S NEW ASTRONOMY

File - Mr. Bogdon`s Website
File - Mr. Bogdon`s Website

... from Earth Bright stars in the night sky are about 1000 000 (1 million) times as far away as the Sun. The near galaxies are about 100 000 times as far away as the bright stars. ...
Pocket Planetarium V17N3.indd
Pocket Planetarium V17N3.indd

... planets will be less than 4 degrees apart; of course, Venus is the brighter of the two. Jupiter in the morning sky As summer begins, Jupiter is situated on the far side of the Sun and is not visible. But the bright planet quickly moves from behind the Sun, and by early July it appears above the hori ...
Kepler Mission: The Search for Earth-sized Planets
Kepler Mission: The Search for Earth-sized Planets

... Not enough gravity to hold onto a lifesustaining atmosphere (like Mercury or Mars) ...
Oct 2017 - What`s Out Tonight?
Oct 2017 - What`s Out Tonight?

... The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great examples. cury, Venus, Mars, Jupiter and Saturn. Venus is ext ...
Chapter 21 notes - Clinton Public Schools
Chapter 21 notes - Clinton Public Schools

... Supernovas: high mass star: quickly evolve into supergiants: explosion: some materials from the star expand into space. May become part of a nebula…this nebula can contract to form a new partly recycled star. The sun began as a nebula that contained material from a supernova Neutron stars: after sup ...
Space (Part 1)
Space (Part 1)

... has cleared the area around its orbit of objects.” This photograph shows Pluto and its moon, Charon. Pluto’s orbit is surrounded by smaller objects which have not been cleared by its gravitational field. Pluto and the other ‘smaller’ planet-like objects such as Eris and Ceres have now been reclassif ...
Types of Stars
Types of Stars

Sparta High School
Sparta High School

CHARACTERISTICS OF STARS
CHARACTERISTICS OF STARS

Astronomy Club of Asheville May 2016 Sky Events
Astronomy Club of Asheville May 2016 Sky Events

...  The planet Saturn can be found late night this month – rising at 10:45 p.m. EDT on May 1st and at 8:38 p.m. EDT on May 31st. So good telescopic views of Saturn will be a late night affair this month. Saturn reaches opposition – closest position to Earth for the year on June 3rd.  Venus, Uranus an ...
Chapter 2: Perihelion of Mercury`s Orbit
Chapter 2: Perihelion of Mercury`s Orbit

conjunction and opposition
conjunction and opposition

... Greatest elongation is the best time to view these inner planets as they will be seen at their furthest angular distance from the Sun, well away from a line of sight with the Sun. ...
- hoganshomepage
- hoganshomepage

... chemical composition of the stars. (also temperature and direction the star is moving in relation to the Earth.) How? Set up a spectroscope with different tubes; each gas has different spectras – light patterns. ...
Galaxy1
Galaxy1

Lecture 20: Formation of Planets, Exoplanets 3/30
Lecture 20: Formation of Planets, Exoplanets 3/30

... • New born star heats up material, blows out of solar nebula  planets (or at least protoplanets) need to form before material dissipates ...
Student Text, pp. 139-144
Student Text, pp. 139-144

... the search for answers to questions related to the patterns and motions of those objects. Until the late 1700s, Jupiter and Saturn were the only outer planets identified in our solar system because they were visible to the naked eye. Combined with the inner planets (Mercury, Venus, Earth, and Mars), ...
Planetary system
Planetary system

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Rare Earth hypothesis



In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.
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