Goal: To understand life in our universe.
... • Lets suppose we sent a craft to the alpha Centauri system at a speed of 0.1 c. • It would take 43 years to get there… • The large distances make interplanetary travel unlikely for a long time – and even then very impractical. ...
... • Lets suppose we sent a craft to the alpha Centauri system at a speed of 0.1 c. • It would take 43 years to get there… • The large distances make interplanetary travel unlikely for a long time – and even then very impractical. ...
Here
... Distances between objects in space are so great that specifying distance in miles is like giving the distance from here to St. Louis in millimeters. Scientists use light-years instead of miles to specify distances to stars and galaxies. A light-year is actually the distance light travels in one year ...
... Distances between objects in space are so great that specifying distance in miles is like giving the distance from here to St. Louis in millimeters. Scientists use light-years instead of miles to specify distances to stars and galaxies. A light-year is actually the distance light travels in one year ...
Habitable zone - Penn State University
... • Long, bright, pre-main sequence evolution – As pointed out by Luger and Barnes (Astrobiology, 2015), M stars can take tens to hundreds of millions of years to collapse (as compared to a few million years for solar-type stars – During this time, these stars can be up to 10 times their eventual main ...
... • Long, bright, pre-main sequence evolution – As pointed out by Luger and Barnes (Astrobiology, 2015), M stars can take tens to hundreds of millions of years to collapse (as compared to a few million years for solar-type stars – During this time, these stars can be up to 10 times their eventual main ...
Neptune
... contains small, icy, Pluto-like objects. The Kuiper belt lies close to the ecliptic plane, and stretches from 30 A.U. to 50 A.U. from the Sun. Named after Gerard Kuiper, who predicted it should be full of planetesimals. Over 800 Kuiper belt objects (a subset of transNeptunian objects) have been disc ...
... contains small, icy, Pluto-like objects. The Kuiper belt lies close to the ecliptic plane, and stretches from 30 A.U. to 50 A.U. from the Sun. Named after Gerard Kuiper, who predicted it should be full of planetesimals. Over 800 Kuiper belt objects (a subset of transNeptunian objects) have been disc ...
Earth/Space Science FINAL Review/Study Guide: Gardana DUE
... 4.) What are some similarities and differences between inner planets? 5.) What planetary features allow Earth to sustain life? 6.) How do the outer planets differ from terrestrial planets? 7.) How do the characteristics of the outer planets compare to one another? 8.) Why is Pluto considered a d ...
... 4.) What are some similarities and differences between inner planets? 5.) What planetary features allow Earth to sustain life? 6.) How do the outer planets differ from terrestrial planets? 7.) How do the characteristics of the outer planets compare to one another? 8.) Why is Pluto considered a d ...
Solar Presentation
... 100,000 km in length. Earth could easily fit between its outstretched “arms.” Dark regions in this TRACE image have temperatures less than 20,000 K; the brightest regions are about 1 million K. The ionized gas follows the solar magnetic field lines away from the Sun. Most of it will subsequently coo ...
... 100,000 km in length. Earth could easily fit between its outstretched “arms.” Dark regions in this TRACE image have temperatures less than 20,000 K; the brightest regions are about 1 million K. The ionized gas follows the solar magnetic field lines away from the Sun. Most of it will subsequently coo ...
Physics@Brock - Brock University
... 34. Type II supernovae are important because (a) the resulting burst of neutrinos keeps the galaxy from collapsing. (b) the elements heavier than iron are synthesized and the elements heavier than helium are dispersed through space. (c) all of star’s hydrogen is returned to the interstellar medium. ...
... 34. Type II supernovae are important because (a) the resulting burst of neutrinos keeps the galaxy from collapsing. (b) the elements heavier than iron are synthesized and the elements heavier than helium are dispersed through space. (c) all of star’s hydrogen is returned to the interstellar medium. ...
this PDF file - Department of Physics and Astronomy
... g, at the planet’s surface. We will calculate the tidal acceleration for Jupiter and its moon Io, Saturn and its largest moon Titan, Uranus and its largest moon Titania, as well as Neptune and its largest moon Triton. Proceeding as before, the mass of the orbiting moon is M1 , the mass of the planet ...
... g, at the planet’s surface. We will calculate the tidal acceleration for Jupiter and its moon Io, Saturn and its largest moon Titan, Uranus and its largest moon Titania, as well as Neptune and its largest moon Triton. Proceeding as before, the mass of the orbiting moon is M1 , the mass of the planet ...
IOSR Journal of Applied Physics (IOSR-JAP) ISSN: 2278-4861.
... The Big Bang theory is the prevailing cosmological model that explains the early development of the Universe. According to the Big Bang theory, the Universe was once in an extremely hot and dense state which expanded rapidly. This rapid expansion caused the young Universe to cool and resulted in its ...
... The Big Bang theory is the prevailing cosmological model that explains the early development of the Universe. According to the Big Bang theory, the Universe was once in an extremely hot and dense state which expanded rapidly. This rapid expansion caused the young Universe to cool and resulted in its ...
S1_LectureOutlines
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
Geller Slides on Contact with ET
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
... Number of Intelligent Civilizations = Number of Stars in the Galaxy (400 billion) x Fraction of Stars with Planets (1/4?) x Number of suitable planets per star (2?) x Fraction of planets where life appears (1/2??) x Fraction of planets with intelligence (???) x Fraction of planets with technology (? ...
Document
... 1. 400 years before Ptolemy, around 280 BC, the Greek philosopher Aristarchus proposed a moving-Earth solution to explain celestial motions. He introduced the concept of a spinning Earth and the first heliocentric model, 1800 years before Copernicus. 2. Even though Aristarchus could not explain the ...
... 1. 400 years before Ptolemy, around 280 BC, the Greek philosopher Aristarchus proposed a moving-Earth solution to explain celestial motions. He introduced the concept of a spinning Earth and the first heliocentric model, 1800 years before Copernicus. 2. Even though Aristarchus could not explain the ...
What is a star? A star is a giant ball of gases held together by gravity
... If the helium core survives the explosion and is massive enough, it may become a black hole. A black hole is a massive star that has collapsed onto itself. It is very dense. Its gravity is so strong, not even light can escape. It is invisible. Scientists have evidence that a black hole is the center ...
... If the helium core survives the explosion and is massive enough, it may become a black hole. A black hole is a massive star that has collapsed onto itself. It is very dense. Its gravity is so strong, not even light can escape. It is invisible. Scientists have evidence that a black hole is the center ...
Honors Physics – Ch 7 Practice Problems
... 4. The passenger liners Carnival Destiny and Grand Princess, built recently, have a mass of about 1.0 × 108 kg each. How far apart must these two ships be to exert a gravitational attraction of 1.0 × 10-3 N on each other? 5. Jupiter, the largest planet in the solar system, has a mass 318 times that ...
... 4. The passenger liners Carnival Destiny and Grand Princess, built recently, have a mass of about 1.0 × 108 kg each. How far apart must these two ships be to exert a gravitational attraction of 1.0 × 10-3 N on each other? 5. Jupiter, the largest planet in the solar system, has a mass 318 times that ...
TENTH GRADE SCOPE AND SEQUENCE DRAFT
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
November 2014 - Hermanus Astronomy
... A team of British, Swiss, and Belgian astronomers made the discoveries around the stars WASP-94A and WASP-94B. The British WASP-South survey, operated by Keele University, found tiny dips in the light of WASP-94A, suggesting that a Jupiter-like planet was transiting the star. Swiss astronomers then ...
... A team of British, Swiss, and Belgian astronomers made the discoveries around the stars WASP-94A and WASP-94B. The British WASP-South survey, operated by Keele University, found tiny dips in the light of WASP-94A, suggesting that a Jupiter-like planet was transiting the star. Swiss astronomers then ...
51) If Earth had twice its present mass, but the same radius
... 73) What causes a solar eclipse? Explain completely. 74) When a star collapses to form a black hole, what happens to its mass? 75) What is the gravitational field strength at the center of the Earth? 76) Are tides more likely to occur on a large planet or a small planet? Why? 77) According to Newton ...
... 73) What causes a solar eclipse? Explain completely. 74) When a star collapses to form a black hole, what happens to its mass? 75) What is the gravitational field strength at the center of the Earth? 76) Are tides more likely to occur on a large planet or a small planet? Why? 77) According to Newton ...
Jupiter - UC Berkeley Astronomy w
... • Solar wind is weaker farther out, or else their magnetospheres would be even smaller • we can not explain the magnetic field tilts of Uranus & Neptune. ...
... • Solar wind is weaker farther out, or else their magnetospheres would be even smaller • we can not explain the magnetic field tilts of Uranus & Neptune. ...
The Moon and terrestrial planets: geology and geophysics
... two perspectives: that of internal compositional variations, usually configured in layers such as crust, mantle, and core; and that of variations in internal temperature and state, producing layers on Earth such as the lithosphere, the asthenosphere, and the outer molten and inner solid core. Intern ...
... two perspectives: that of internal compositional variations, usually configured in layers such as crust, mantle, and core; and that of variations in internal temperature and state, producing layers on Earth such as the lithosphere, the asthenosphere, and the outer molten and inner solid core. Intern ...
Europalife - Denise Jacobs
... original energy that was the result of the respective planet's collapse into a dense ball of rock, metal, and liquid metal hydrogen. If the heat is enough to show up signifigantly now, what must it have been like four or five billion yers ago? Terence Dickinson claims: "Near the origin of the solar ...
... original energy that was the result of the respective planet's collapse into a dense ball of rock, metal, and liquid metal hydrogen. If the heat is enough to show up signifigantly now, what must it have been like four or five billion yers ago? Terence Dickinson claims: "Near the origin of the solar ...
Instructional Subunit on the Solar System
... Have students practice the words revolution and rotation. Create a large circle in which the instructor stands in the middle. The students represent Earth while the teacher represents the sun. The instructor will call out one term that was used today (rotation/rotate or revolution/revolve) and stude ...
... Have students practice the words revolution and rotation. Create a large circle in which the instructor stands in the middle. The students represent Earth while the teacher represents the sun. The instructor will call out one term that was used today (rotation/rotate or revolution/revolve) and stude ...
The new europian project ROPACS (Rocky Planets Around …
... follow-up efforts to search for and measure planetary light (in the near- and mid-infrared) as they pass behind their host star. Assess and test/use sensitive ground-based facilities (e.g. GTC) to search for planetary light in the infrared. Optimize methods (in part via input from the Astrium ESR) i ...
... follow-up efforts to search for and measure planetary light (in the near- and mid-infrared) as they pass behind their host star. Assess and test/use sensitive ground-based facilities (e.g. GTC) to search for planetary light in the infrared. Optimize methods (in part via input from the Astrium ESR) i ...
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.