Section 3: Evolution of Stars pages 114-119
... A star is born when the contracting gas and dust become so hot that nuclear fusion starts. Are classified by: ____________________________________________________ Protostar __________________ pulls huge nebulas of hydrogen gas and dust into a single spinning cloud. As the particles cras ...
... A star is born when the contracting gas and dust become so hot that nuclear fusion starts. Are classified by: ____________________________________________________ Protostar __________________ pulls huge nebulas of hydrogen gas and dust into a single spinning cloud. As the particles cras ...
Stars Powerpoint
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
... • The matter inside the star will be compressed so tightly that its atoms are compacted into a dense shell of neutrons. If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left be ...
The Earth: Unique in All the Universe (Updated)
... other hand, would be extremely cold, and most life could also not exist there for very long. The only habitable region would be a thin slice of air, but even here life could not exist for long because plants and trees necessary to support life in the atmosphere could not survive, as they would be in ...
... other hand, would be extremely cold, and most life could also not exist there for very long. The only habitable region would be a thin slice of air, but even here life could not exist for long because plants and trees necessary to support life in the atmosphere could not survive, as they would be in ...
pdf file with complementary illustrations / animations
... For the last 20 years the giant planets known as hot Jupiters have presented astronomers with a puzzle. How did they settle into orbits 100 times closer to their host stars than our own Jupiter is to the Sun? An international team of astronomers has announced this week1 the discovery of a newborn ho ...
... For the last 20 years the giant planets known as hot Jupiters have presented astronomers with a puzzle. How did they settle into orbits 100 times closer to their host stars than our own Jupiter is to the Sun? An international team of astronomers has announced this week1 the discovery of a newborn ho ...
UCSB CLAS
... Star X has twice the mass of the Sun. One of Star X’s planets has the same mass as the Earth, and orbits Star X at the same distance at which the Earth orbits the Sun. The orbital speed of this planet of Star X is A. faster than the Earth’s orbital speed. B. the same as the Earth’s orbital speed. C. ...
... Star X has twice the mass of the Sun. One of Star X’s planets has the same mass as the Earth, and orbits Star X at the same distance at which the Earth orbits the Sun. The orbital speed of this planet of Star X is A. faster than the Earth’s orbital speed. B. the same as the Earth’s orbital speed. C. ...
PHYS 390 Lecture 3
... If one can determine the luminosity of a star WITHOUT knowing d, then a measurement of the flux F on Earth can be inverted to find d. That is: (i) extract L from some observable characteristic of the star (ii) measure F on Earth (iii) use F = L / 4πd2 to solve for d. The problem with this approach i ...
... If one can determine the luminosity of a star WITHOUT knowing d, then a measurement of the flux F on Earth can be inverted to find d. That is: (i) extract L from some observable characteristic of the star (ii) measure F on Earth (iii) use F = L / 4πd2 to solve for d. The problem with this approach i ...
Note - Overflow Education
... same temperature. The reason is that these stars are much larger than main sequence stars. Although they emit the same amount of energy per square metre as main sequence stars they have much greater surface area (area ∝ radius2) the total energy emitted is thus much greater. These stars are referred ...
... same temperature. The reason is that these stars are much larger than main sequence stars. Although they emit the same amount of energy per square metre as main sequence stars they have much greater surface area (area ∝ radius2) the total energy emitted is thus much greater. These stars are referred ...
Lecture 10 February 13
... Every star with less than 5M~ will end up as a White Dwarf Most stars with mass above 1.3M~ have reached end of MS life. ...
... Every star with less than 5M~ will end up as a White Dwarf Most stars with mass above 1.3M~ have reached end of MS life. ...
Sample Answer Sheet for The 10 Tourist Wonders of the
... As much as 90% of the star’s material can be thrown off during the explosion and, in the process, new (heavier) elements are made, and then distributed at high speed into the Galaxy. In many ways, life on Earth owes its existence to supernovae and the fact that they “recycle” the material of early g ...
... As much as 90% of the star’s material can be thrown off during the explosion and, in the process, new (heavier) elements are made, and then distributed at high speed into the Galaxy. In many ways, life on Earth owes its existence to supernovae and the fact that they “recycle” the material of early g ...
Midterm 1 Short Answer (+1-3pts) Record the answers to these
... Some of you mentioned that the ozone allowed photosynthesis to occur so that oxygen can be created. It is the other way around, photosynthesis, which produced oxygen allowed the ozone layer to exist since ozone is made of three oxygen atoms. Some of you mentioned that it allowed life to evolve. This ...
... Some of you mentioned that the ozone allowed photosynthesis to occur so that oxygen can be created. It is the other way around, photosynthesis, which produced oxygen allowed the ozone layer to exist since ozone is made of three oxygen atoms. Some of you mentioned that it allowed life to evolve. This ...
IN THE CENTRE OF THE SUN IT ABOUT 15 MILLION DEGREES
... • Data from Magellan's imaging radar shows that much of the surface of Venus is covered by lava flows. There are several large shield volcanoes (similar to Hawaii or Olympus Mons). • Recently announced findings indicate that Venus is still volcanically active, but only in a few hot spots; for the mo ...
... • Data from Magellan's imaging radar shows that much of the surface of Venus is covered by lava flows. There are several large shield volcanoes (similar to Hawaii or Olympus Mons). • Recently announced findings indicate that Venus is still volcanically active, but only in a few hot spots; for the mo ...
Distance and Luminosity (new 2012)
... Because of the Earth's revolution around the Sun, nearby stars appear to move with respect to very distant stars which seem to be standing still. Measure the angle to the star and observe how it changes as the position of the earth changes. In the diagram if the observation point is at the top of th ...
... Because of the Earth's revolution around the Sun, nearby stars appear to move with respect to very distant stars which seem to be standing still. Measure the angle to the star and observe how it changes as the position of the earth changes. In the diagram if the observation point is at the top of th ...
Document
... b. produced by a supernova explosion. c. produced by a nova explosion. d. a nebula within which planets are forming. e. a cloud of hot gas surrounding a planet. 22. Massive stars cannot generate energy through iron fusion because a. iron fusion requires very high density. b. stars contain very littl ...
... b. produced by a supernova explosion. c. produced by a nova explosion. d. a nebula within which planets are forming. e. a cloud of hot gas surrounding a planet. 22. Massive stars cannot generate energy through iron fusion because a. iron fusion requires very high density. b. stars contain very littl ...
Hydrogen Greenhouse Planets Beyond the Habitable Zone
... planets around M stars will be below the condensation temperature of all gases except for H2 and He. These mono- and di-atomic gases lack the bending and rotational modes that impart features to the infrared absorption spectra of more complex molecules. At high pressure, however, collisions cause H2 ...
... planets around M stars will be below the condensation temperature of all gases except for H2 and He. These mono- and di-atomic gases lack the bending and rotational modes that impart features to the infrared absorption spectra of more complex molecules. At high pressure, however, collisions cause H2 ...
The Science of Life in the Universe (Chap 2
... reasoning clearly. Even if we discover a civilization around other stars, we will never be able to talk with them with the same ease with which we carry on conversations with people on Earth. ...
... reasoning clearly. Even if we discover a civilization around other stars, we will never be able to talk with them with the same ease with which we carry on conversations with people on Earth. ...
Tycho Brahe & Johannes Kepler
... These laws describe the observed planetary motions but do not describe why these motions occur as they do. ...
... These laws describe the observed planetary motions but do not describe why these motions occur as they do. ...
The Science of Life in the Universe (Chap 2
... reasoning clearly. Even if we discover a civilization around other stars, we will never be able to talk with them with the same ease with which we carry on conversations with people on Earth. ...
... reasoning clearly. Even if we discover a civilization around other stars, we will never be able to talk with them with the same ease with which we carry on conversations with people on Earth. ...
Comparative Planetology
... than that of Neptune that have sufficient mass for their self-gravity to overcome rigid body forces so that they assume a hydrostatic equilibrium (near-spherical) shape, and that have not cleared the neighborhood around ...
... than that of Neptune that have sufficient mass for their self-gravity to overcome rigid body forces so that they assume a hydrostatic equilibrium (near-spherical) shape, and that have not cleared the neighborhood around ...
Question: Fossilized footprints of Coelophysis
... Picking the right table: The key word fossil suggests the Geologic History of New York State table (pp. NY26–NY27). You can use this table to look up the geologic era in which Coelophysis lived. The Generalized Bedrock Geology of New York State (p. NY21) contains a key with geological eras, as well ...
... Picking the right table: The key word fossil suggests the Geologic History of New York State table (pp. NY26–NY27). You can use this table to look up the geologic era in which Coelophysis lived. The Generalized Bedrock Geology of New York State (p. NY21) contains a key with geological eras, as well ...
PowerPoint Presentation - Small Bodies in the Solar System
... points away from the sun because the solar wind is blowing it away. ...
... points away from the sun because the solar wind is blowing it away. ...
localhost
... Why do optical astronomers sometimes put their telescopes at the tops of mountains, while radio astronomers sometimes put their telescopes in deep valleys? For optical astronomers, visible light is easily scattered by the Earth’s atmosphere. Building a telescope on the top of a mountain keeps the te ...
... Why do optical astronomers sometimes put their telescopes at the tops of mountains, while radio astronomers sometimes put their telescopes in deep valleys? For optical astronomers, visible light is easily scattered by the Earth’s atmosphere. Building a telescope on the top of a mountain keeps the te ...
planet
... Earth. Move it to Pluto’s orbit, and it will be instantly disqualified as a planet.” (Allan Stern) • What does clear the neighborhood really mean? – Earth, Mars, Jupiter and Neptune all have asteroids as neighbors (in similar orbits) ...
... Earth. Move it to Pluto’s orbit, and it will be instantly disqualified as a planet.” (Allan Stern) • What does clear the neighborhood really mean? – Earth, Mars, Jupiter and Neptune all have asteroids as neighbors (in similar orbits) ...
Our Sun - STEMpire Central
... What phenomenon inside the Sun causes a solarmax? What are the effects of a solarmax here on Earth? ...
... What phenomenon inside the Sun causes a solarmax? What are the effects of a solarmax here on Earth? ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.