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Homework October 24-28
Homework October 24-28

... planet Venus. Yet you and I can see Venus with the naked eye, and definitely with a pair of binoculars. But for us to see Neptune, we would need a strong telescope. This is because A)Neptune is on the opposite side of the sun B) of our position on the surface of the Earth. C) most of Neptune's mass ...
Name Date Period ______ 30.1 Characteristics of Stars Definitions
Name Date Period ______ 30.1 Characteristics of Stars Definitions

... 19. What are circumpolar stars? What is one example? ...
Article - Iowa State University
Article - Iowa State University

... space material as it enters. In fact, the atmosphere can protect us from NearEarth-Objects (NEOs) up to about 130 feet in diameter. Scientists have discovered more than two-thirds of the asteroids in the solar system that are larger than this threshold and continue to watch for others that cross our ...
Core Theme 3: The Solar System
Core Theme 3: The Solar System

... refined by Ptolemy), general cosmology clung to these misconstrued ideas for the next 2,000 years. Even when Nicholas Copernicus introduced the notion of a heliocentric universe, many contemporary societies greatly influenced by religious beliefs refused to accept it. Today we consider this a ridicu ...
Astronomy
Astronomy

... - a galaxy is a large collection of billions of stars - our solar system is in the Milky Way galaxy. ...
Weekly Class Newsletter
Weekly Class Newsletter

... We have observed that some students come without P.E shoes or towels during P.E. Parents are kindly requested to double check their bags to make sure all required items are provided. ...
Our Solar System
Our Solar System

... Neptune 8th planet from sun  Discovered through math  12 known moons  Triton largest moon  Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...
CT9b
CT9b

... CT9-4.A rock is released from rest at a point in space far from Earth, beyond the orbit of the Moon. The rock falls toward the Earth and crosses the orbit of the Moon. When the rock is the same distance from the Earth as the Moon, the magnitude of the acceleration of the rock is .. (Ignore the gravi ...
Notes: Astronomy and Groups of Stars
Notes: Astronomy and Groups of Stars

... The core of stars is very hot. The temperatures observed are of the outer layer of the star. ...
Astronomy and Our Origins
Astronomy and Our Origins

... Where did we come from? • Scientists believe the entire universe began as a single, one dimensional speck that exploded into existence. • This idea is called the Big Bang Theory! • Do we know for sure…of course not…we could be right or wrong. We will never know. • But we do have a lot of evidence t ...
chapter-30-pp
chapter-30-pp

... This is called a “blue shift”. This is caused by shorter light waves as it moves toward Earth. ...
Astronomy 100 Homework #2 Solutions 1, Problem 3‐27 (2 pts
Astronomy 100 Homework #2 Solutions 1, Problem 3‐27 (2 pts

... 5.
Problem
4‐34
(2
pts).
If
Earth
were
twice
as
far
from
the
Sun,
the
force
of
gravity
 attracting
Earth
to
the
sun
would
be
(c)
one‐quarter
as
strong.
Gravity
follows
an
 inverse
square
law
in
proportion
to
distance.
 6.
Problem
4‐36
(2
pts).
If
the
Moon
were
closer
to
the
Earth,
high
tides
would
b ...
Benchmark lesson
Benchmark lesson

... gas and the helium gas that makes up the Sun. During the reaction, called nuclear fusion, large amounts of energy are given off in the form of light and heat. Many schools and community buildings in Florida use this energy to heat water. The energy from the heated water is used to make electricity. ...
11.3.1 Grade 6 Standard 4 Unit Test Astronomy Multiple Choice 1
11.3.1 Grade 6 Standard 4 Unit Test Astronomy Multiple Choice 1

Guided notes part 1 - Duplin County Schools
Guided notes part 1 - Duplin County Schools

... to the next, which averages about ______________________________ Noon is when the sun has reached its _________________________________, or highest point in the sky The _____________________________________, on the other hand, is the time it takes for Earth to make one complete rotation (___________ ...
Slide 1
Slide 1

Stars - Independence High School
Stars - Independence High School

... • Star Formation- Cloud of interstellar gas called a Nebula which forms a Protostar • Protostar becomes hot enough for fusion to begin and become a star ...
exercise 1
exercise 1

Venus
Venus

... Earth’s Twin? • In many ways, Venus is like Earth’s twin. • They have about the same size, mass, and density. • BUT…Venus rotates in a different direction so… the sun rises in the west and sets in the east. (Retrograde rotation) http://www.cosmos4kids.com/extras/dtop_solsyst/venus_580.jpg ...
Intelligent Life in the Milky Way Galaxy
Intelligent Life in the Milky Way Galaxy

...  No robotic probes orbiting Solar System  No Radio Signals from aliens, despite radio telescopes.  Some aliens will wander in the Galaxy, ...
Chapter 16 Lesson 2: What is a Star
Chapter 16 Lesson 2: What is a Star

... Lesson 2: What is a star? How the Sun Stacks Up as a Star a. The Sun is a star because all stars are very large balls of hot gases that give off electromagnetic radiation. b. The Sun gives off huge amounts of heat and light energy, due to very high heat and pressure that push hydrogen atoms together ...
What is a planet? Why? How?
What is a planet? Why? How?

... independent of each other came up with the idea that maybe there was another planet beyond Uranus that was pulling on Uranus and changing its path.  Scientists looked where they predicted this planet to be and Neptune was found. ...
Astronomy Milestone/OAS practice
Astronomy Milestone/OAS practice

... 14. Which planet do scientists think once had surface water or flowing rivers? A. Mercury B. Venus C. Mars D. Jupiter 15. Venus is completely enveloped in clouds that hide its surface from view on Earth. Which statement is also true about these clouds? A. They keep the surface cool. B. They produce ...
Slide 1
Slide 1

24exoplanets5s
24exoplanets5s

... Very large interferometers could take spectra of planets to look for signs of life ...
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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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