Is Anyone Out There? Solving the Drake Equation
... Only Jupiter/Saturn/Uranus/Neptune sized planets (mostly) ...
... Only Jupiter/Saturn/Uranus/Neptune sized planets (mostly) ...
Asteroids
... have highly elliptical orbits that bring them very close to the Sun and swing them deeply into space, often beyond the orbit of Pluto. Comets can range in size from 0.7 to 20 km in diameter. As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilom ...
... have highly elliptical orbits that bring them very close to the Sun and swing them deeply into space, often beyond the orbit of Pluto. Comets can range in size from 0.7 to 20 km in diameter. As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilom ...
Distribution of Elements in the Earth`s Crust
... “Some part of our being knows this is where we came from. We long to return. And we can. Because the cosmos is also within us. We are made of star stuff. We are a way for the cosmos to know itself.” —Carl Sagan The universe began about 13.8 billion years ago with the big bang, an event in which enor ...
... “Some part of our being knows this is where we came from. We long to return. And we can. Because the cosmos is also within us. We are made of star stuff. We are a way for the cosmos to know itself.” —Carl Sagan The universe began about 13.8 billion years ago with the big bang, an event in which enor ...
Space Unit - Questions and Answers
... 19. What is the difference between meteors and comets? A meteor is a meteoroid that is trapped by Earth’s gravity and pulled down by Earth’s atmosphere. As it falls through Earth’s atmosphere, it rubs against the molecules of the air (this rubbing is called friction), it becomes hot and vaporizes an ...
... 19. What is the difference between meteors and comets? A meteor is a meteoroid that is trapped by Earth’s gravity and pulled down by Earth’s atmosphere. As it falls through Earth’s atmosphere, it rubs against the molecules of the air (this rubbing is called friction), it becomes hot and vaporizes an ...
What`s That Up In The Sky???
... They range from just over ½ a mile (1km) to a few hundred miles in diameter (diameter = how wide across) ...
... They range from just over ½ a mile (1km) to a few hundred miles in diameter (diameter = how wide across) ...
Volume 20 Number 5 April 2012 - Forsyth Astronomical Society
... than stars, according to a new study by researchers. They said “If observations confirm the estimate, this new class of celestial objects will affect current theories of planet formation and could change our understanding of the origin and abundance of life. If any of these nomad planets are big eno ...
... than stars, according to a new study by researchers. They said “If observations confirm the estimate, this new class of celestial objects will affect current theories of planet formation and could change our understanding of the origin and abundance of life. If any of these nomad planets are big eno ...
20081 Study Guide_77-120
... Plutonians to observe the inner planets and develop a heliocentric model. 2. the orbit period of the planet; if you know a planet’s distance from the sun, you can determine the orbit period using Kepler’s third law. 3. The dark surface of asteroids composed of carbon would reflect little light; the ...
... Plutonians to observe the inner planets and develop a heliocentric model. 2. the orbit period of the planet; if you know a planet’s distance from the sun, you can determine the orbit period using Kepler’s third law. 3. The dark surface of asteroids composed of carbon would reflect little light; the ...
Our Solar System Formation
... masses and just fused into a bigger planet. The earth was no exception. It too went through a massive collision with another about 4.5 billion years ago with a mars size planet called Theia. The Earth barely survived this impact but because of the angle that Theia hit the Earth, it was able to hold ...
... masses and just fused into a bigger planet. The earth was no exception. It too went through a massive collision with another about 4.5 billion years ago with a mars size planet called Theia. The Earth barely survived this impact but because of the angle that Theia hit the Earth, it was able to hold ...
title of lesson plan - Discovery Education
... A celestial body that consists of a fuzzy-appearing head usually surrounding a bright nucleus, usually with a highly eccentric orbit, and that often, when in the part of its orbit near the sun, develops a long tail that points away from the sun. Context: The massive gravitational pull of Jupiter dre ...
... A celestial body that consists of a fuzzy-appearing head usually surrounding a bright nucleus, usually with a highly eccentric orbit, and that often, when in the part of its orbit near the sun, develops a long tail that points away from the sun. Context: The massive gravitational pull of Jupiter dre ...
Physical Attributes of Stars
... • Super giants: Older and larger • Virtually non-existent: Used to be other stars but are slowly burning out ...
... • Super giants: Older and larger • Virtually non-existent: Used to be other stars but are slowly burning out ...
Other Planetary Systems
... This Explains Why… …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirm ...
... This Explains Why… …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirm ...
Lecture7
... from interplanetary space. It entered Earth’s upper atmosphere and was collected by a high-flying aircraft. Dust grains of this sort are abundant in star-forming regions like the Orion nebula. These tiny grains were also abundant in the solar nebula and served as the building blocks of the planets. ...
... from interplanetary space. It entered Earth’s upper atmosphere and was collected by a high-flying aircraft. Dust grains of this sort are abundant in star-forming regions like the Orion nebula. These tiny grains were also abundant in the solar nebula and served as the building blocks of the planets. ...
Big Bang Theory
... Imagine you are sitting at a table with a red apple in front of you. Your friend turns off all the lights. It is totally dark in the room. There are no windows in the room or crack around the door. No light can enter the room. Write the statement you believe best describes how you would see the appl ...
... Imagine you are sitting at a table with a red apple in front of you. Your friend turns off all the lights. It is totally dark in the room. There are no windows in the room or crack around the door. No light can enter the room. Write the statement you believe best describes how you would see the appl ...
Homework #5 Chapter 3: Solar System Due
... Many of the newly discovered planetary systems are very different from our own. Most of the planets are as big as or bigger than Jupiter or Saturn, with no Earth-like planets found yet. Many of the newly discovered planets have highly elliptical orbits. Many of these worlds are very close to their s ...
... Many of the newly discovered planetary systems are very different from our own. Most of the planets are as big as or bigger than Jupiter or Saturn, with no Earth-like planets found yet. Many of the newly discovered planets have highly elliptical orbits. Many of these worlds are very close to their s ...
The Children of Earth
... the work of your fingers, the moon and the stars that you have established; what are human beings that you are mindful of them, mortals that you care for them? ...
... the work of your fingers, the moon and the stars that you have established; what are human beings that you are mindful of them, mortals that you care for them? ...
The Doppler effect
... hear hissing static. The hiss would become louder when he tuned in to an area in space that was giving off large amounts of radio waves – the bright radio objects. In our solar system the Sun is the brightest of all the radio objects, and Jupiter is the second brightest. Radio astronomers wanted ...
... hear hissing static. The hiss would become louder when he tuned in to an area in space that was giving off large amounts of radio waves – the bright radio objects. In our solar system the Sun is the brightest of all the radio objects, and Jupiter is the second brightest. Radio astronomers wanted ...
Kuiper Belt - Shades of Blue
... Exoplanet 55 Cancri e twice Earth’s Size – and made largely of diamond Oct 12, 2012 – Wired UK ...
... Exoplanet 55 Cancri e twice Earth’s Size – and made largely of diamond Oct 12, 2012 – Wired UK ...
Astronomy
... revolution – the circling of one object about another, the motion of the planets around the sun and satellites (moons) around the planets satellite – a natural moon or manmade orbiter of a planet seasons – one of the four divisions of the year, spring, summer, and winter, marked by the passage of th ...
... revolution – the circling of one object about another, the motion of the planets around the sun and satellites (moons) around the planets satellite – a natural moon or manmade orbiter of a planet seasons – one of the four divisions of the year, spring, summer, and winter, marked by the passage of th ...
Powerpoint - Physics and Astronomy
... How did the Solar System Form? We weren't there (it was 5 billion years ago). We need a good theory. We can try to check it against other forming solar systems. What must it explain? - Solar system is very flat. - Almost all moons and planets (and Sun) rotate and revolve in the same direction. - Pl ...
... How did the Solar System Form? We weren't there (it was 5 billion years ago). We need a good theory. We can try to check it against other forming solar systems. What must it explain? - Solar system is very flat. - Almost all moons and planets (and Sun) rotate and revolve in the same direction. - Pl ...
Science 9 Unit 5: Space Name
... remote-controlled ‘landers’ that put equipment on or close to planets where no human has gone before. Probes have done remote sensing on Mercury and Jupiter, taken soil samples on Mars, landed on Venus, and studied Saturn’s rings up close. The most recent probes to explore Mars are still there. The ...
... remote-controlled ‘landers’ that put equipment on or close to planets where no human has gone before. Probes have done remote sensing on Mercury and Jupiter, taken soil samples on Mars, landed on Venus, and studied Saturn’s rings up close. The most recent probes to explore Mars are still there. The ...
23.3 The Outer Planets
... observed when a meteoroid enters Earth’s atmosphere and burns up, popularly called a shooting star. A meteorite t it is i any portion ti off a meteoroid t id that reaches Earth’s surface. ...
... observed when a meteoroid enters Earth’s atmosphere and burns up, popularly called a shooting star. A meteorite t it is i any portion ti off a meteoroid t id that reaches Earth’s surface. ...
Study Guide for Astronomy
... Ptolemy – developed the Earth-centered theory of universe (called Geocentric) Copernicus – developed the Sun-centered theory of universe (called Heliocentric) Day – length of time it takes Earth to rotate once on its axis, approximately 24 hours Month – length of time it takes the moon to orbit once ...
... Ptolemy – developed the Earth-centered theory of universe (called Geocentric) Copernicus – developed the Sun-centered theory of universe (called Heliocentric) Day – length of time it takes Earth to rotate once on its axis, approximately 24 hours Month – length of time it takes the moon to orbit once ...
Panspermia
Panspermia (from Greek πᾶν (pan), meaning ""all"", and σπέρμα (sperma), meaning ""seed"") is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids, comets, planetoids and, also, by spacecraft in the form of unintended contamination by microorganisms.Panspermia is a hypothesis proposing that microscopic life forms that can survive the effects of space, such as extremophiles, become trapped in debris that is ejected into space after collisions between planets and small Solar System bodies that harbor life. Some organisms may travel dormant for an extended amount of time before colliding randomly with other planets or intermingling with protoplanetary disks. If met with ideal conditions on a new planet's surfaces, the organisms become active and the process of evolution begins. Panspermia is not meant to address how life began, just the method that may cause its distribution in the Universe.Pseudo-panspermia (sometimes called ""soft panspermia"" or ""molecular panspermia"") argues that the pre-biotic organic building blocks of life originated in space and were incorporated in the solar nebula from which the planets condensed and were further —and continuously— distributed to planetary surfaces where life then emerged (abiogenesis). From the early 1970s it was becoming evident that interstellar dust consisted of a large component of organic molecules. Interstellar molecules are formed by chemical reactions within very sparse interstellar or circumstellar clouds of dust and gas. The dust plays a critical role of shielding the molecules from the ionizing effect of ultraviolet radiation emitted by stars.Several simulations in laboratories and in low Earth orbit suggest that ejection, entry and impact is survivable for some simple organisms.