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space - Net Start Class
space - Net Start Class

... from the observer, by the time light enters through the lens of a telescope, it may have been traveling for years. ...
The hierarchical structure of the Universe (go from little to large)
The hierarchical structure of the Universe (go from little to large)

... • The glow of the Milky Way • Stars • Star clusters (open clusters and globular clusters) • Planetary nebulae (dying stars) • Supernova remnants (stars that blew up) • Diffuse nebulae (glowing interstellar gas) ...
Presentation 2
Presentation 2

... Venus has high mountains, many of which appear to be volcanic in origin. The bright region near the center in the polar hemispheric view is Maxwell Montes, the highest mountain range on Venus; it reaches an elevation of 11 km above average elevation (2 km more than the elevation of Mount Everest abo ...
Unit 11 Vocabulary
Unit 11 Vocabulary

... 3. protostar - a very young star that is still gathering mass from its parent molecular cloud. This is the earliest phase in the process of a star’s evolution. 4. main sequence star - stars that are fusing hydrogen atoms to form helium atoms in their cores. Most of the stars in the universe are main ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
Extension worksheet – Topic 6 - Cambridge Resources for the IB

... so requires knowledge of luminosity and apparent brightness; apparent brightness can easily be measured with a CCD camera; the luminosity can be determined if we know the temperature of the star (obtained form its spectrum) and the stellar type so the HR can be used to find luminosity. ...
Pluto_Friends
Pluto_Friends

... • Hubble observations of Pluto: discovery of moons Nix and Hydra (2005) • Planet vote of 2006: planets and “dwarf planets” • History: how many planets are there? • The “problem” of being first: Ceres & Pluto • Hubble observations of Ceres, another dwarf planet • New Horizons and Dawn missions: follo ...
What makes a planet habitable?
What makes a planet habitable?

... heating due to O2 and O3 photodissociation by solar UV radiation (1250 ≤ λ ≤ 3500 Å), ...
The Search for Another Earth
The Search for Another Earth

... it is quite rational to speculate that some of those planets orbiting other stars might be habitable. The search for planets outside the solar system, termed as extrasolar planets or exoplanets, started during the nineteenth century. But the necessary technology to detect even a large planet similar ...
Earth_Science - Gorman Learning Center
Earth_Science - Gorman Learning Center

... universe before stars formed. * Students know the evidence indicating that the color, brightness, and evolution of a star are determined by a balance between gravitational collapse and nuclear fusion. * Students know how the red-shift from distant galaxies and the cosmic background radiation provide ...
The Seasons Interactive - Home
The Seasons Interactive - Home

...  Establish what tilt of the earth’s axis means, and illustrate by moving the globe around the circle that it does not change.  Move the globe to the spring equinox. Have visitors observe that the Earth is always half in the light and half in the dark, and that only on the equinoxes days do both th ...
Astronomy, Chapter 1 Learning Target #1 Explain the motion of the
Astronomy, Chapter 1 Learning Target #1 Explain the motion of the

... Describe the relationship of the moon and Earth during the high and low tide? Two bulges of water form, one on the side of the Earth closest to the Moon and one on the opposite side of Earth. The reason two bulges form is because the Moon’s gravity pulls harder on parts of Earth closer to the Moon t ...
PowerPoint - Chandra X
PowerPoint - Chandra X

... Chandra Science Highlights NGC 7027: A young planetary nebula about 3,000 light years from Earth in the constellation Cygnus. Chandra’s image of NGC 7027 represents the first detection of X-rays from this young planetary nebula that is about 700 years old. A bubble of 3 million degree Celsius gas wi ...
SCI112: Earth Science
SCI112: Earth Science

... Unit 4: Astronomy By this point in the earth science curriculum, students have a firm basis for understanding earth and its characteristics. Students now look at earth in the broader context of its place in the solar system, the Milky Way, and the universe. Building on the “big ideas” of astronomy, ...
Basic data of CoRoT-Exo-2b - tls
Basic data of CoRoT-Exo-2b - tls

...  1.Determine the percentage of terrestrial and larger planets there are in or near the habitable zone of a wide variety of stars;  2.Determine the distribution of sizes and shapes of the orbits of these planets;  3.Estimate how many planets there are in multiple-star systems;  4.Determine the va ...
ET: Astronomy 230 Outline Important Caveat
ET: Astronomy 230 Outline Important Caveat

... even most binary systems have them. • Hard to think of a formation scenario without a disk at some point– single or binary system. • Disk formation matches our solar system parameters. • We know of many brown dwarves, so maybe some planets do not form around stars. – There might be free-floating pla ...
Exercise set five
Exercise set five

... each set of observations: Indicate the name of the person who took the data. Record as much information as you can about what star was used and from where it was observed. List the date and time of each occultation. ...
rotation of the Earth
rotation of the Earth

... observations by the Italian scientist Galileo Galilei (1564-1642), providing the first new astronomical data for centuries. He observed that Venus displayed phases and changes in its apparent size that correlated with its angular distance from the Sun, confirming Copernicus prediction. He also disco ...
angular size - Particle and Astroparticle Physics
angular size - Particle and Astroparticle Physics

... • We still refer to many of these groupings • Astronomers call them constellations (from the Latin for “group of stars”) ...
ocean_10_lecture_1
ocean_10_lecture_1

... • No written records exist of Pacific human history before the 16th Century. • Archeological evidence suggests island occupation by people from New Guinea as early as 4000–5000 B.C. • Thor Heyerdahl sailed on a balsa raft – the Kon Tiki – to demonstrate migration of South Americans to Pacific Ocean ...
1 Introduction - Numerical Recipes
1 Introduction - Numerical Recipes

... o er the only paths to some parts of physics. d) But note: we do not allow \new physics" to be involved very often. Astrophysics corresponds to an application of the standard laws of physics to the Universe as a whole. We assume the universality (literally) of the laws of physics in order to make an ...
NAM_f2
NAM_f2

... We are currently working with data from a spaceborne all sky photometric monitor to try and detect planetary transits around nearby stars. Using an instrument with an effective cadence of 100 minutes and a total mission lifetime of 3 years (2 of which have already been completed) we are able to buil ...
astro 001 - courses.psu.edu
astro 001 - courses.psu.edu

... maintains its altitude above the horizon, as depicted above, but gradually drifts eastward, so that eventually it appears directly above the east point on the horion e) By the time we get to Florida, Polaris certainly will have disappeared below the northern horizon. 10. The constellations of the Zo ...
Objectives for Units 1-3
Objectives for Units 1-3

... high daytime temperatures on the Moon travel faster than the Moon’s escape velocity of 1.7 miles per second. Thus, the Moon could not possibly have an atmosphere. 5. Discuss the two major theories for the origin of lunar craters. a. The first theory is that the craters were created from volcanic act ...
Origin of the Earth and of the Solar System
Origin of the Earth and of the Solar System

... Rotating gas and dust clouds contract to accretion discs, since only in the equatorial plane gravitation and centrifugal force ban be in equilibrium. The picture sequence (Source: Nature) shows the (successful) simulation of the formation of protoplanets in an ...
Gravity
Gravity

... CTGravity-6. 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 th ...
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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.
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