Life in the Universe
... to considering extrasolar planets with habitable surfaces. So far all detected extrasolar planets (except maybe one or two) are gaseous giants and are unlikely to have surface life. ...
... to considering extrasolar planets with habitable surfaces. So far all detected extrasolar planets (except maybe one or two) are gaseous giants and are unlikely to have surface life. ...
Homework #3 Solutions
... This would be surprising. Our current observations of Mercury show it covered by craters, and absolutely barren of water or an atmosphere. Since sand dunes are built up by erosion cause either by winds of an atmosphere or of currents in water, we therefore wouldn’t expect to see sand dunes since we ...
... This would be surprising. Our current observations of Mercury show it covered by craters, and absolutely barren of water or an atmosphere. Since sand dunes are built up by erosion cause either by winds of an atmosphere or of currents in water, we therefore wouldn’t expect to see sand dunes since we ...
For Immediate Release Caltech Researchers Find Evidence of a
... Scientists have long believed that the early solar system began with four planetary cores that went on to grab all of the gas around them, forming the four gas planets— Jupiter, Saturn, Uranus, and Neptune. Over time, collisions and ejections shaped them and moved them out to their present locations ...
... Scientists have long believed that the early solar system began with four planetary cores that went on to grab all of the gas around them, forming the four gas planets— Jupiter, Saturn, Uranus, and Neptune. Over time, collisions and ejections shaped them and moved them out to their present locations ...
Earth
... dead, but still toasty, core of the Sun, making the core more massive and more compressed. This raises the temperature of the core until suddenly -- and I really do mean suddenly, as in seconds -the helium in the core fires up and begins to fuse itself into carbon. Using the fuel-tank analogy, this ...
... dead, but still toasty, core of the Sun, making the core more massive and more compressed. This raises the temperature of the core until suddenly -- and I really do mean suddenly, as in seconds -the helium in the core fires up and begins to fuse itself into carbon. Using the fuel-tank analogy, this ...
SST Worksheet - 3
... VII. READ THE PASSAGE AND ANSWER THE FOLLOWING: Rotation is the movement of the earth in a circular motion around the axis line while the movement of the earth around the sun in a fixed path or orbit is called revolution. 1. What is the impact of rotation and revolution of the earth? ...
... VII. READ THE PASSAGE AND ANSWER THE FOLLOWING: Rotation is the movement of the earth in a circular motion around the axis line while the movement of the earth around the sun in a fixed path or orbit is called revolution. 1. What is the impact of rotation and revolution of the earth? ...
A Changing Planet - Illinois State University
... Further out, the dust grains accumulate into smaller object such as planets and comets. It takes about 100,000,000 years to form planet size objects. (Earth formed ~4.5 billion years ago) Outer planets formed first. Early planets are continually bombarded by large and small objects. ...
... Further out, the dust grains accumulate into smaller object such as planets and comets. It takes about 100,000,000 years to form planet size objects. (Earth formed ~4.5 billion years ago) Outer planets formed first. Early planets are continually bombarded by large and small objects. ...
Short-Period Comets
... Short-period comets from the ___________________ come from _________________ between objects. Short-period comets take less than _________ years to orbit the sun. Short-period comets have a _____________ life span as they lose layers each time they pass the ____________. ...
... Short-period comets from the ___________________ come from _________________ between objects. Short-period comets take less than _________ years to orbit the sun. Short-period comets have a _____________ life span as they lose layers each time they pass the ____________. ...
ISP 205: Visions of the Universe
... 1. To ensure that you’re reading the text 2. To be mean 3. To take attendance 4. So Julia doesn’t have to lecture as much 5. No reason ...
... 1. To ensure that you’re reading the text 2. To be mean 3. To take attendance 4. So Julia doesn’t have to lecture as much 5. No reason ...
Lecture7_2014_v2
... • Those which were located between the Jovian planets, if not captured, were gravitationally flung in all directions into the Oort cloud. • Those beyond Neptune’s orbit remained in the ecliptic plane in what we call the Kuiper belt. Slide 62 ...
... • Those which were located between the Jovian planets, if not captured, were gravitationally flung in all directions into the Oort cloud. • Those beyond Neptune’s orbit remained in the ecliptic plane in what we call the Kuiper belt. Slide 62 ...
Star - University of Pittsburgh
... Descriptions are useful, but they don't tell us how something came to be or what the future will be. Need to understand the physical process occurring, and need to MODEL those processes. An accurate model allows one to probe the past and extrapolate into the future (i.e., to make predictions). Model ...
... Descriptions are useful, but they don't tell us how something came to be or what the future will be. Need to understand the physical process occurring, and need to MODEL those processes. An accurate model allows one to probe the past and extrapolate into the future (i.e., to make predictions). Model ...
Comets
... • her afternoon nap. Bruised , but not badly injured, she is one of only two people known to have been struck by a meteorite. ...
... • her afternoon nap. Bruised , but not badly injured, she is one of only two people known to have been struck by a meteorite. ...
Conservation of Momentum
... c. How does this result depend on the Earth’s mass and radius? d. Compare the potential and kinetic energies when the object is dropped and when it hits the ground. Explain the result from the view of conservation of energy. R-2. (6 points) Momentum, the product of an object’s mass and velocity, aff ...
... c. How does this result depend on the Earth’s mass and radius? d. Compare the potential and kinetic energies when the object is dropped and when it hits the ground. Explain the result from the view of conservation of energy. R-2. (6 points) Momentum, the product of an object’s mass and velocity, aff ...
Testing
... • Nebular theory predicts that massive Jupiter-like planets should not form inside the frost line (at << 5 AU) • Discovery of “hot Jupiters” has forced reexamination of nebular theory • “Planetary migration” or gravitational encounters may explain “hot Jupiters” ...
... • Nebular theory predicts that massive Jupiter-like planets should not form inside the frost line (at << 5 AU) • Discovery of “hot Jupiters” has forced reexamination of nebular theory • “Planetary migration” or gravitational encounters may explain “hot Jupiters” ...
Motion of the Moon Phases of the Moon
... • Answer: the Moon and Sun, coincidentally, have nearly the same angular size • Angular size of an object depends on two things ...
... • Answer: the Moon and Sun, coincidentally, have nearly the same angular size • Angular size of an object depends on two things ...
What are constellations? - Red Hook Central Schools
... and properties of objects in space Constellations: Observed pattern people use to mark the position of stars in the sky ...
... and properties of objects in space Constellations: Observed pattern people use to mark the position of stars in the sky ...
Phys 214. Planets and Life
... Hot-jovian describes the most common type of extrasolar planet discovered to date. The orbits of most extrasolar planets detected to date are highly elliptical. Most of the extrasolar planetary systems discovered to date are very different than our own solar system having Jovian-sized planets close ...
... Hot-jovian describes the most common type of extrasolar planet discovered to date. The orbits of most extrasolar planets detected to date are highly elliptical. Most of the extrasolar planetary systems discovered to date are very different than our own solar system having Jovian-sized planets close ...
Beyond Planet Earth: Activities for Grades 6-8
... (Answers may include: Samples could help them understand the formation of the solar system. Many asteroids contain the original debris from which the planets formed.) 2. Observe the Knowles Meteorite Touch the meteorite. What does it feel like? What do you think it is made of? How does its size and ...
... (Answers may include: Samples could help them understand the formation of the solar system. Many asteroids contain the original debris from which the planets formed.) 2. Observe the Knowles Meteorite Touch the meteorite. What does it feel like? What do you think it is made of? How does its size and ...
Astro 4 Practice Test 1
... a. The Moon sometimes passes in front of stars, covering them up. b. The apparent sizes of the stars are much smaller than the Moon. c. Some of the bright stars occasionally appear to pass in front of the Moon. d. The Moon can sometimes be seen during the day, which proves that it must be much close ...
... a. The Moon sometimes passes in front of stars, covering them up. b. The apparent sizes of the stars are much smaller than the Moon. c. Some of the bright stars occasionally appear to pass in front of the Moon. d. The Moon can sometimes be seen during the day, which proves that it must be much close ...
General Astronomy - Stockton University
... In 1881, Pickering hired Fleming to do clerical work at the observatory. While there, she devised and helped implement a system of assigning stars a letter according to how much hydrogen could be observed in their spectra. Later, Annie Jump Cannon would improve upon this work to develop a simpler cl ...
... In 1881, Pickering hired Fleming to do clerical work at the observatory. While there, she devised and helped implement a system of assigning stars a letter according to how much hydrogen could be observed in their spectra. Later, Annie Jump Cannon would improve upon this work to develop a simpler cl ...
Earth - Mrs. Christov`s Physical Geography Class
... Planets- celestial bodies that revolve around a star and reflect the star’s light rather than producing their own. They rotate or spin on their own axes, and revolve around the Sun. ...
... Planets- celestial bodies that revolve around a star and reflect the star’s light rather than producing their own. They rotate or spin on their own axes, and revolve around the Sun. ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.