How Math, And Not a Telescope, May Have Found a New Planet
... Planet X, and lo and behold, Tombaugh found Pluto. In 1930, Pluto was thought to be a big planet — considerably more massive than Earth. It took until the 1970s for people to figure out that Pluto was a lightweight, only a fraction of the mass of the moon and too small to be nudging Neptune’s orbit. ...
... Planet X, and lo and behold, Tombaugh found Pluto. In 1930, Pluto was thought to be a big planet — considerably more massive than Earth. It took until the 1970s for people to figure out that Pluto was a lightweight, only a fraction of the mass of the moon and too small to be nudging Neptune’s orbit. ...
Teacher`s Guide Discover Magazine: The Solar System
... Q: How does a reflecting telescope work? A: Light enters the telescope tube and is reflected by the concave main mirror so that it converges into a single focal point. Then, a secondary mirror reflects the light onto the telescope’s eyepiece, where a lens refracts the light into the observer’s eye. ...
... Q: How does a reflecting telescope work? A: Light enters the telescope tube and is reflected by the concave main mirror so that it converges into a single focal point. Then, a secondary mirror reflects the light onto the telescope’s eyepiece, where a lens refracts the light into the observer’s eye. ...
ch 12 - Gravitation
... the same orbit, has the same velocity and acceleration as the shuttle. The only force acting on the astronaut is gravity, so the astronaut is experiencing apparent weightlessness as in a freely falling elevator; Both the international space station and the moon are satellites of the earth. The moon ...
... the same orbit, has the same velocity and acceleration as the shuttle. The only force acting on the astronaut is gravity, so the astronaut is experiencing apparent weightlessness as in a freely falling elevator; Both the international space station and the moon are satellites of the earth. The moon ...
Earth, Sun, and Moon System
... temperatures to drop even more. Eventually, this can lead to an ice age. When Earth’s tilt decreases, the seasons become milder. It is important to realize that many factors contribute to climate on Earth. Although Milankovitch cycles likely play a role in climate change, scientists do not think the ...
... temperatures to drop even more. Eventually, this can lead to an ice age. When Earth’s tilt decreases, the seasons become milder. It is important to realize that many factors contribute to climate on Earth. Although Milankovitch cycles likely play a role in climate change, scientists do not think the ...
Earth Systems - Salt Lake City School District
... 8. Data from many spacecraft have revealed evidence that water was once present on Mars in the form of folds, runoff channels and possible shorelines of ancient oceans. Images from the Hubble Space Telescope have indicated that there are minerals present on Mars that form only in the presence of wat ...
... 8. Data from many spacecraft have revealed evidence that water was once present on Mars in the form of folds, runoff channels and possible shorelines of ancient oceans. Images from the Hubble Space Telescope have indicated that there are minerals present on Mars that form only in the presence of wat ...
Earth Science Notes - Bridgman Public Schools
... near Earth it should have nearly the same composition. Specifically, it should possess a significant iron core, and it does not. ...
... near Earth it should have nearly the same composition. Specifically, it should possess a significant iron core, and it does not. ...
Astronomy: Earth and Space Systems
... Previous/future knowledge: In the 1st grade (1-3.1) the Sun was a feature in the daytime sky. In 4th grade (4-3.2) the Sun, a star, is compared to Earth. Studying nuclear fusion in stars and the formation of elements from that fusion is part of high school Earth Science (ES-2.4). It is essential for ...
... Previous/future knowledge: In the 1st grade (1-3.1) the Sun was a feature in the daytime sky. In 4th grade (4-3.2) the Sun, a star, is compared to Earth. Studying nuclear fusion in stars and the formation of elements from that fusion is part of high school Earth Science (ES-2.4). It is essential for ...
Teacher`s Guide - Discovery Education
... How to Use the DVD The DVD starting screen has the following options: Play Video—This plays the video from start to finish. There are no programmed stops, except by using a remote control. With a computer, depending on the particular software player, a pause button is included with the other video c ...
... How to Use the DVD The DVD starting screen has the following options: Play Video—This plays the video from start to finish. There are no programmed stops, except by using a remote control. With a computer, depending on the particular software player, a pause button is included with the other video c ...
Counting Comets
... of how, with the help of TeraGrid resources, investigators are slowly but surely unraveling the secrets of nature, from the nanoscale to the distant Solar System to the outer reaches of the Universe. ...
... of how, with the help of TeraGrid resources, investigators are slowly but surely unraveling the secrets of nature, from the nanoscale to the distant Solar System to the outer reaches of the Universe. ...
Apr 2017 - Astronomical Society of Northern New England
... remembering that is when the last dinosaur died on earth. A comet or asteroid hit the earth then and its 150-mile-wide crater is visible under the Gulf of Mexico just off the Yucatan Peninsula. They only found that crater less than 30 years ago since it is underwater. If there is a highly intelligen ...
... remembering that is when the last dinosaur died on earth. A comet or asteroid hit the earth then and its 150-mile-wide crater is visible under the Gulf of Mexico just off the Yucatan Peninsula. They only found that crater less than 30 years ago since it is underwater. If there is a highly intelligen ...
Planet Jupiter
... liquid hydrogen. Within the planet pressure and temperature are so high that there is no clear boundary between the gas and liquid. Jupiter probably has a central core of rocky material about 1.5 times the diameter of Earth and 10 to 15 times more massive. Over this may rest an enormous mantle of li ...
... liquid hydrogen. Within the planet pressure and temperature are so high that there is no clear boundary between the gas and liquid. Jupiter probably has a central core of rocky material about 1.5 times the diameter of Earth and 10 to 15 times more massive. Over this may rest an enormous mantle of li ...
Planet Jupiter
... liquid hydrogen. Within the planet pressure and temperature are so high that there is no clear boundary between the gas and liquid. Jupiter probably has a central core of rocky material about 1.5 times the diameter of Earth and 10 to 15 times more massive. Over this may rest an enormous mantle of li ...
... liquid hydrogen. Within the planet pressure and temperature are so high that there is no clear boundary between the gas and liquid. Jupiter probably has a central core of rocky material about 1.5 times the diameter of Earth and 10 to 15 times more massive. Over this may rest an enormous mantle of li ...
Slide 1
... A comet is a celestial object made of ice and dust. When a gravitational disturbance causes one to change its orbit and fall nearer the Sun, the Sun heats the comet, causing some of its ice particles to break away. Carried away from the Sun by the solar wind, these icy particles spread out into a ta ...
... A comet is a celestial object made of ice and dust. When a gravitational disturbance causes one to change its orbit and fall nearer the Sun, the Sun heats the comet, causing some of its ice particles to break away. Carried away from the Sun by the solar wind, these icy particles spread out into a ta ...
Jupiter - deatonwilliams
... Jupiter is the largest planet All the other planets could fit inside it ...
... Jupiter is the largest planet All the other planets could fit inside it ...
Gravity - WordPress.com
... but also, just a little bit, by the pull of the sun. The reason why the moon's pull is so much stronger is because, even though it is much smaller than the sun, it is also much, much closer to earth. Gravity is the force that holds moons in their orbit abound their planet, and planets in their orbi ...
... but also, just a little bit, by the pull of the sun. The reason why the moon's pull is so much stronger is because, even though it is much smaller than the sun, it is also much, much closer to earth. Gravity is the force that holds moons in their orbit abound their planet, and planets in their orbi ...
Geology 111 - A3 - Global geology at the turn of the century
... that of the earth's magnetic field at that time [page 312-313]. This is called remnant magnetism. Rocks like basalt, which cool from a high temperature and which commonly have relatively high levels of magnetite, are particularly susceptible to being magnetized in this way. By studying both the hori ...
... that of the earth's magnetic field at that time [page 312-313]. This is called remnant magnetism. Rocks like basalt, which cool from a high temperature and which commonly have relatively high levels of magnetite, are particularly susceptible to being magnetized in this way. By studying both the hori ...
Campus: Elementary Author(s): Derden, Edmond, Bryant, Spurgers
... Review: Lab safety, and observation and measurement. Day 16 - 20: This final week of our Solar System unit will culminate in a grade level group activity which creates a miniature solar system on the playground. This will require coordination among all third grade teachers and among the student team ...
... Review: Lab safety, and observation and measurement. Day 16 - 20: This final week of our Solar System unit will culminate in a grade level group activity which creates a miniature solar system on the playground. This will require coordination among all third grade teachers and among the student team ...
ASTRONOMY 113 Laboratory Kepler`s 3rd Law and the Mass of Sgr A
... Conclusion: Figure 4 shows the same Hubble image on a larger scale. You can easily see the straight beam of matter that traverses the image – this beam of matter is called a jet. It consists of ultra-hot gas and magnetic fields, ...
... Conclusion: Figure 4 shows the same Hubble image on a larger scale. You can easily see the straight beam of matter that traverses the image – this beam of matter is called a jet. It consists of ultra-hot gas and magnetic fields, ...
Dating the Earth 6-to-a-page
... • The discovery of radioactivity destroyed Kelvin’s argument for the age of Earth • Radioactivity is the spontaneous decay of an atom’s nucleus to a more stable form • The heat from radioactivity helps explain why the Earth is still warm inside • Radioactivity provides geologists with a powerful too ...
... • The discovery of radioactivity destroyed Kelvin’s argument for the age of Earth • Radioactivity is the spontaneous decay of an atom’s nucleus to a more stable form • The heat from radioactivity helps explain why the Earth is still warm inside • Radioactivity provides geologists with a powerful too ...
Science Affiliates Workshop NY Geology Powerpoint
... Proterozoic - "Earlier life" - 'modern' tectonic processes established Archean – "Archaic," 'ancient,' - origin of continents, oceans, life Hadean – "Hades-like," - hot, hellish ...
... Proterozoic - "Earlier life" - 'modern' tectonic processes established Archean – "Archaic," 'ancient,' - origin of continents, oceans, life Hadean – "Hades-like," - hot, hellish ...
5.2 Size-Distance F
... 18. Have the students recombine the three pounds of play dough and seal it in an air-tight container. ...
... 18. Have the students recombine the three pounds of play dough and seal it in an air-tight container. ...
2010 AP Gravitation Notes
... 36. A satellite of mass m is in an elliptical orbit around the Earth, which has mass Me and radius Re. The orbit varies from closest approach of a at point A to maximum distance of b from the center of the Earth at point B. At point A, the speed of the satellite is vo Assume that the gravitational p ...
... 36. A satellite of mass m is in an elliptical orbit around the Earth, which has mass Me and radius Re. The orbit varies from closest approach of a at point A to maximum distance of b from the center of the Earth at point B. At point A, the speed of the satellite is vo Assume that the gravitational p ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.