• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Stars and Moon Summative Review
Stars and Moon Summative Review

... How does the gravitational pull of the moon affect the Earth? (the side closest and the side farthest) What does a waxing moon indicate? Identify the cause of tides on Earth. Describe the effect that the elliptical orbit of the moon has on the Earth. ...
ecliptic
ecliptic

Planet Characteristics - Red Hook Central Schools
Planet Characteristics - Red Hook Central Schools

... It's absolutely impossible. 3 reasons: the planet has an atmosphere that is made up from gases that are deadly to a human. Secondly, the surface of Jupiter (and just about all of the rest of it too) is gaseous and the only "solid" part is a very small inner core. Thirdly, even if you could find a so ...
The Law of Universal Gravitation
The Law of Universal Gravitation

... force which makes an apple fall from a tree towards the earth is the same force which keeps the moon orbiting Earth and Earth orbiting the Sun. In fact, he claimed that this same force called gravity governs the Universe. (1686) In his terms… any two bodies exert a force upon each other. ...
Unit 5B Universal Gravitation
Unit 5B Universal Gravitation

Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

... gets hotter … ...
Stars, Planets, Moons, too Doing the Solar System
Stars, Planets, Moons, too Doing the Solar System

... The star nearest Earth is the Sun, It provides energy for everyone. The energy comes in the form of heat and light, It’s a ball of gases that burns just right. ...
Formation of a Solar System Notes Integrated Science 2 Name: Pd: I
Formation of a Solar System Notes Integrated Science 2 Name: Pd: I

... stars and eventually solar systems are formed. ...
Ch. 20-2 Sun Study Gd. Revised
Ch. 20-2 Sun Study Gd. Revised

... 10. Clouds of gas and dust on a comet form a fuzzy outer layer called a _______________________. 11. A spherical region of comets on the outer edges surrounding the solar system is the ___________________ . 12. A doughnut-shaped region of comets that begins near Neptune’s orbit is the ______________ ...
Second Book: Student´s Reference Book ……
Second Book: Student´s Reference Book ……

... Milky Way, also called the Galaxy, a group of stars in the shape of a saucer, which include the Sun and its Solar System. For an observer on Earth, the Galaxy appears as a faint band of light which can be seen at night extending across the sky, especially on clear summer nights with no moon. Structu ...
The solar system
The solar system

Geology 110: Earth and Space Science
Geology 110: Earth and Space Science

... #5: Which of the following statements is most accurate? Explain the reason for your answer as well as why you did not choose either of the other two statements. a) All stars and planets are about the same age. b) Stars are approximately the same age as their orbiting planets. c) The number of stars ...
Tom`s presentation
Tom`s presentation

... James Hutton, the “father of geology”, realized observable geologic processes would require vast amounts of time to produce the mountains, valleys, etc., we see on Earth today ...
Physical Science Lecture Notes
Physical Science Lecture Notes

... b. Star is “born” when the protostar has contracting tight enough for Hydrogen to fuse into Helium, this releases the light and energy we normally associate with a “normal” star. 2. Life of a Star a. How long a star lives depends on its initial mass – the more mass stars use their fuel faster than l ...
trek across the milky way
trek across the milky way

... • Venus is the second planet from the sun. • It is the brightest object in the sky besides the sun and the moon • Venus is composed mostly of carbon dioxide, which makes it unsuitable for life. • Said to be Earth’s sister planet because they are quite similar in all aspects, like size. • Has no know ...
Origin of the Solar System
Origin of the Solar System

... – Rock could not condense within this distance ...
Eratosthenes of Cyrene (c.276-c.196 BC)
Eratosthenes of Cyrene (c.276-c.196 BC)

... An Egyptian astronomer, mathematician, and geographer, also known as Claudius Ptolemaeus, who worked at the great library in Alexandria and based his astronomy on the belief that all heavenly bodies revolve around Earth (see Ptolemaic system). He authored a 13-volume work called Mathematical Syntaxi ...
Grade 3 Social Studies
Grade 3 Social Studies

... What is the Solar System? Our solar system is the Sun and the planets that orbit, or spin, around it. The Sun is really a star that is only about 93,000,000 miles from us. Until 2006 we had nine known planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Astronomers then ...
History_p1
History_p1

... 4.Mathematics is thought and, therefore, it is eternal and can be known by anyone. ...
Study Guide for Unit 4: Stars and Solar System
Study Guide for Unit 4: Stars and Solar System

... place between the full moon and the new moon. The light is on the right side when the moon is waxing and left when it is waning. The moon does not make its own light. It is reflecting the Suns light. *Half of the moon is always lit, however during the moons orbit we see different fractions of the li ...
astronomy - sfox4science
astronomy - sfox4science

... The universe is estimated to be over 10 billion years old. The universe is composed of galaxies, stars, planets, asteroids, comets, and meteors, each having different properties. Our solar system exists within the Milky Way galaxy. The known components of our solar system are the Sun, four terrestri ...
Dead Earth – Lesson 2 – Solar System
Dead Earth – Lesson 2 – Solar System

il 3 ~ )
il 3 ~ )

... (a) What is this in absolute units (Kelvin)? What is the peak wavelength emitted by a person with this temperature? (b) In what region of the spectrum is this wavelength? Is this consistent with the fact that humans do not appear to glow (optically) in the dark? (c) Estimate the surface area of your ...
Homework Assignment 1 — Solutions
Homework Assignment 1 — Solutions

... and therefore the Earth can catch up with it in the shortest amount of time (relative to the other superior planets). ...
How is the universe both predictable and unpredictable at the same
How is the universe both predictable and unpredictable at the same

< 1 ... 327 328 329 330 331 332 333 334 335 ... 373 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report