• 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
Law of Universal Gravitation
Law of Universal Gravitation

... Ocean Tides and the Sun • The sun also contributes to ocean tides, but since it is further away, it influences tides to a lesser extent • Spring Tides – A high or low tide that occurs when the sun, Earth and the moon are all lined up so that the tides due to the sun and the moon coincide, making th ...
Scientific Results Summary
Scientific Results Summary

... Subaru Telescope continues to expand the boundaries of astronomical knowledge and cosmological understanding. Another busy year of observations brought discoveries of interest to subjects ranging from Solar System bodies to stellar composition and distant dark matter. Subaru continues to lead the pa ...
The Planetarium Fleischmann Planetarium
The Planetarium Fleischmann Planetarium

... to block out the light from the bright star so they could see details in the faint ring. “The ACS’s coronagraph offers high contrast, allowing us to see the ring’s structure against the extremely bright glare from Fomalhaut,” Clampin said. “This observation is currently impossible to do at visible w ...
Hydrogen Greenhouse Planets Beyond the Habitable Zone
Hydrogen Greenhouse Planets Beyond the Habitable Zone

... 2010). We predict that any primordial hydrogen atmosphere has been lost by EUV-driven hydrodynamic escape carrying He and other light volatiles with it. In contrast, more massive OGLE05-390L, which orbits ∼2.6 AU from a mid Mtype star but has a similar effective temperature (Ehrenreich et al. 2006), ...
science - Amazon Web Services
science - Amazon Web Services

... motions, positions, dimensions, and destinies of the planets, stars, and other heavenly bodies in our universe. Man has known or conjectured about our solar system for many years through mathematical computations, telescopic observation, and just plain imagination. Scientists have made startling new ...
ph507lecnote06
ph507lecnote06

... Deuterium burning limit occurs at around 13 Jupiter masses (1 MJ = 1.9 x 1027 kg ~ 0.001 Msun It is important to realise that for young objects, there is no large change in properties at the deuterium burning limit. ALL young stars / brown dwarfs / planets liberate gravitational potential energy a ...
solution
solution

... 3.24 How did Aristarchus try to estimate the diameters of the Sun and Moon? He used geometry and proportions to estimate the relative distances between the Sun, Earth and Moon. Once he had these, he used the eclipses to state that the Sun and Moon had the same angular size, so their relative sizes c ...
Space Station One, Grades 4-8 Program Description: Have you ever
Space Station One, Grades 4-8 Program Description: Have you ever

... 4. The structure and composition of the universe can be learned from the study of stars and galaxies, and their evolution. As a basis for understanding this concept, students know: a. galaxies are clusters of billions of stars, and may have different shapes. b. the sun is one of many stars in our ow ...
The James Webb Space Telescope: A Vision for the Future
The James Webb Space Telescope: A Vision for the Future

... and planets Webb’s infrared vision will reveal the chaotic and turbulent regions of star birth. It will uncover the swirling disks that surround newly forming stars, and study new planets in the making. Webb will see the dust, gas, and icy objects that swirl around young stars. It also will observe ...
New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars.
New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars.

... power can simulate the dynamics of only a meager number of planetesimals (no more than 105) compared with reality (1012). Furthermore, closein planets may undergo further orbital evolution because of tides raised on both the host star and planet or the gravitational influence of two or more giant pl ...
05Sky1.ppt - NMSU Astronomy
05Sky1.ppt - NMSU Astronomy

... • Note that the predictions of astrology may work sometimes; almost certainly, some of these predictions will work sometimes by chance! Certainly, astrology is not a fully deterministic theory; if it claimed to be so, even a single example of a failed astrological prediction would invalidate the the ...
Winter Interim Assessment Review - Aventura Waterways K-8
Winter Interim Assessment Review - Aventura Waterways K-8

... •These objects orbit the sun and have enough gravity to pull themselves into spheres, but they have other objects in the area of their orbit. •When scientists discovered other objects that were at least Pluto’s size, Pluto was demoted to a dwarf planet. COMETS •Loose collections of ice , dust, and s ...
powerpoint - Physics @ IUPUI
powerpoint - Physics @ IUPUI

... did not get along with) to find a model which based on the observations would make sense in order so “that it may not appear I have lived in vain.” ...
Modeling axial tilt and daylight
Modeling axial tilt and daylight

... Modified from “Modeling the Seasons” activity, Exploratorium Modified for 5 th grade ...
Warm- up Question Tell me what you know about The Big Bang
Warm- up Question Tell me what you know about The Big Bang

... the sun converts matter into energy in its core 2. I will be able to compare the radiative and convective zones of the sun 3. When ask I will be able to describe the 3 layers of the sun’s atmosphere ...
Slide 1
Slide 1

... Formation of our Planets The disk of gases surrounding the sun has various temperatures – hottest closest to the sun, coldest furthest from the sun As the gas cools, different substances (elements) are able to condense into liquids and solids The condensing liquids/solids begin to clump together and ...
Stars from Afar
Stars from Afar

... Most large telescopes today have spectrographs. A spectrograph (spek truh graf) breaks the light from an object into colors and photographs the resulting ...
ASK 8 Science
ASK 8 Science

... Ozone Depletion Ozone (O3) is a molecule made up of 3 atoms of oxygen instead of two, which is Oxygen gas (O2). It is found in the upper atmosphere of Earth and protects living organisms from harmful ultraviolet radiation. Certain molecules produced by human activity, such as CFCs, react with ozone ...
The Warrumbungle Observer The Warrumbungle Observer
The Warrumbungle Observer The Warrumbungle Observer

... Jupiter is the brightest object excluding the moon in the evening sky this month. It can be found in the constellation Capricorn which looks like the letter ‘D’ in the eastern evening sky. Careful observations of Jupiter’s position each night will show Jupiter moving compared to the other stars in C ...
Q3.2.a The gravitational force exerted by a planet on one of its
Q3.2.a The gravitational force exerted by a planet on one of its

... itself in a block of mass 0.50 kg that is sitting at rest on a very slippery sheet of ice. Which equation will correctly give the final speed vf_BLOCK of the block? 1) (0.04 kg)*(800 m/s) = (0.50 kg) *vf_BLOCK 1) (0.04 kg)*(800 m/s) = (0.04 kg) *vf_BLOCK 1) (0.04 kg)*(800 m/s) = (0.50 kg) *vf_BLOCK ...
Astronomy and Cosmology - spring 2003 - final exam
Astronomy and Cosmology - spring 2003 - final exam

... 48. The two ranges of electromagnetic radiation for which Earth's atmosphere is reasonably transparent are A) UV and radio waves. C) X rays and visible radiation. B) visible and far infrared radiation. D) visible and radio radiation. ...
Lecture 4 (pdf from the powerpoint)
Lecture 4 (pdf from the powerpoint)

... useful for more than just rockets! • It helps determine which planets have an atmosphere, and which don’t – Object with a smaller mass (such as the Moon, or Mercury) have a low escape velocity. Gas particles near the planet can escape easily, so these bodies don’t have much of an atmosphere. – Plane ...
Cosmic Distance Ladder
Cosmic Distance Ladder

... • Different orbital positions of the Earth causes nearby stars to appear to move relative to the more distant stars. • The annual parallax is defined as the difference in position of a star as seen from the Earth and Sun, i.e. the angle subtended at a star by the mean radius of the Earth's orbit aro ...
V1003.HW5.2014 - Earth and Environmental Sciences
V1003.HW5.2014 - Earth and Environmental Sciences

... dust and aerosols were injected into the stratosphere and were quickly mixed around the globe. The increase in atmospheric aerosols increased the Earth’s reflectivity (albedo) from 0.30 to 0.31. a) What impact would this have on The Earth’s effective temperature? ...
The Association of Dust Disks and Planets Lynne Hillenbrand (Caltech) P.I.
The Association of Dust Disks and Planets Lynne Hillenbrand (Caltech) P.I.

... planets with periods < t can be assessed. Longer baseline observations are needed to sense planets orbiting farther from their host star, with a 10-year baseline required to detect planets at ∼5 AU. From the known occurrence of giant planets, we expect to discover 10–15 planets from among the 100 “S ...
< 1 ... 171 172 173 174 175 176 177 178 179 ... 392 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report