Comets vs. Asteroids
... Why do we study comets? Scientists want to find out all about comets to help them understand better how the Solar System began and evolved to what it is today. NASA has sent several spacecraft to visit comets. Deep Space 1 flew by Comet Borrelly. Stardust collected dust from Comet Wild (Vilt) 2 and ...
... Why do we study comets? Scientists want to find out all about comets to help them understand better how the Solar System began and evolved to what it is today. NASA has sent several spacecraft to visit comets. Deep Space 1 flew by Comet Borrelly. Stardust collected dust from Comet Wild (Vilt) 2 and ...
Exploring the Solar System with space probes
... 2009 was proclaimed the International Year of Astronomy to commemorate a defining moment in history. It was exactly 400 years ago that Galileo Galilei turned his telescope to the sky for the first time – and what he discovered was truly ‘revolutionary‘. His observations, which he duly noted in the S ...
... 2009 was proclaimed the International Year of Astronomy to commemorate a defining moment in history. It was exactly 400 years ago that Galileo Galilei turned his telescope to the sky for the first time – and what he discovered was truly ‘revolutionary‘. His observations, which he duly noted in the S ...
Scale and Distance
... Pluto is a dwarf planet that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. Pluto is smaller than a lot of the other planets' moons, including our moon. Pluto is the only "p ...
... Pluto is a dwarf planet that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. Pluto is smaller than a lot of the other planets' moons, including our moon. Pluto is the only "p ...
Terrestrial Planets II
... Left images: This impressive drainage system empties into Semeykin Crater on the northern margin of Arabia Terra. Right image: Impacts, floods, and tectonic forces have all left traces on Ares Vallis, a Martian outflow channel. Outflow channels formed when massive floods of water poured out of the g ...
... Left images: This impressive drainage system empties into Semeykin Crater on the northern margin of Arabia Terra. Right image: Impacts, floods, and tectonic forces have all left traces on Ares Vallis, a Martian outflow channel. Outflow channels formed when massive floods of water poured out of the g ...
The Sun - River Ridge CUSD #210
... C. Annual motions 1. Annual changes are the result of Earth’s orbital motion around the Sun. 2. The plane in which earth orbits about the sun is called the ecliptic. 3. At one point the earth’s axis is tilted toward the sun while the other is tipped away42 from the sun. ...
... C. Annual motions 1. Annual changes are the result of Earth’s orbital motion around the Sun. 2. The plane in which earth orbits about the sun is called the ecliptic. 3. At one point the earth’s axis is tilted toward the sun while the other is tipped away42 from the sun. ...
Origin of Terrestrial Planets and the Earth–Moon System
... Moon angular momentum by an oblique impact with Earth thus implies an impactor roughly the size of Mars—that is, about 0.1 M−. For impact-ejected material to achieve Earth-bound orbit, some modification to standard ballistic trajectories must occur, otherwise ejecta launched from the planet’s surfac ...
... Moon angular momentum by an oblique impact with Earth thus implies an impactor roughly the size of Mars—that is, about 0.1 M−. For impact-ejected material to achieve Earth-bound orbit, some modification to standard ballistic trajectories must occur, otherwise ejecta launched from the planet’s surfac ...
FUTURE MERCURY EXPLORATION: UNIQUE SCIENCE
... inner Solar System, each of which is unique. Mercury represents an endmember of planetary formation: the planet closest to the Sun, with a highly reduced, but volatile-bearing surface, and an oversized metallic core in comparison to the other planets. A truly fundamental question in planetary scienc ...
... inner Solar System, each of which is unique. Mercury represents an endmember of planetary formation: the planet closest to the Sun, with a highly reduced, but volatile-bearing surface, and an oversized metallic core in comparison to the other planets. A truly fundamental question in planetary scienc ...
The Cosmic Perspective Our Planetary System
... system used in Chapter 1, where does the asteroid belt lie? a) between Mars and Jupiter, around the National Air and Space Museum b) between Uranus and Neptune, around the Hirshorn Museum c) between Neptune and Pluto, around the Art and Industries Building d) beyond Neptune, but still within the ...
... system used in Chapter 1, where does the asteroid belt lie? a) between Mars and Jupiter, around the National Air and Space Museum b) between Uranus and Neptune, around the Hirshorn Museum c) between Neptune and Pluto, around the Art and Industries Building d) beyond Neptune, but still within the ...
Earth-Mars Interplanetary Transport System Brian Dodson The issue
... These results ignore the gravitational effects of leaving and approaching massive planets. However, if one is only interested in the Hohmann transfer orbit, the total ΔV is about +5.65 km/sec, about half of Earth’s escape velocity, and hence requiring about ¼ of the kinetic energy required to escape ...
... These results ignore the gravitational effects of leaving and approaching massive planets. However, if one is only interested in the Hohmann transfer orbit, the total ΔV is about +5.65 km/sec, about half of Earth’s escape velocity, and hence requiring about ¼ of the kinetic energy required to escape ...
Decadal Survey Moon Summary
... volatiles were outgassed from those planets’ interiors, and what fractions represent late meteoritic and cometary infall? ° What are the chemical and isotopic compositions of hydrogen-rich (possibly water ice) near the Moon’s surface? ° What are the inventories and distributions of volatile elements ...
... volatiles were outgassed from those planets’ interiors, and what fractions represent late meteoritic and cometary infall? ° What are the chemical and isotopic compositions of hydrogen-rich (possibly water ice) near the Moon’s surface? ° What are the inventories and distributions of volatile elements ...
Origin of the Solar System
... – Some gas locked up in the Jovian planets.! – The rest is blown away by the young solar wind of the Sun.! ...
... – Some gas locked up in the Jovian planets.! – The rest is blown away by the young solar wind of the Sun.! ...
Asteroids
... Asteroids are very small, rocky bodies that orbit the Sun. "Asteroid" means "star-like," and in a telescope, asteroids look like points of light, just like stars. Asteroids are irregularly shaped because they do not have enough gravity to become round. They are also too small to maintain an atmosphe ...
... Asteroids are very small, rocky bodies that orbit the Sun. "Asteroid" means "star-like," and in a telescope, asteroids look like points of light, just like stars. Asteroids are irregularly shaped because they do not have enough gravity to become round. They are also too small to maintain an atmosphe ...
The Origin of the Earth What`s New?
... the early Archean. Furthermore, the average Pb isotope compositions of the crust and mantle (or the combined bulk silicate Earth) plot close to the geochron determined by Patterson (1956) for the solar system. The geochron represents the line of equal age, corresponding to Pb isotope compositions of ...
... the early Archean. Furthermore, the average Pb isotope compositions of the crust and mantle (or the combined bulk silicate Earth) plot close to the geochron determined by Patterson (1956) for the solar system. The geochron represents the line of equal age, corresponding to Pb isotope compositions of ...
Our solar system (and probably several hundred others)
... is only 2% or 3% of its radius; Earth’s is 45%. Mercury orbits the Sun at 0.38 AU, in a decidedly elliptical path (e = 0.206). At aphelion it is 63% farther from the Sun than at perihelion. Virtually airless, Mercury’s surface has the most extreme conditions of any terrestrial body. Thermal infrared ...
... is only 2% or 3% of its radius; Earth’s is 45%. Mercury orbits the Sun at 0.38 AU, in a decidedly elliptical path (e = 0.206). At aphelion it is 63% farther from the Sun than at perihelion. Virtually airless, Mercury’s surface has the most extreme conditions of any terrestrial body. Thermal infrared ...
An Overview of the Solar System
... disk forms; the rock condenses a bit later. The lighter elements remain in gaseous form. 5. The dust particles collide with each other and form into larger particles. This goes on until the particles get to the size of boulders or small asteroids. Once the larger of these particles get big enough to ...
... disk forms; the rock condenses a bit later. The lighter elements remain in gaseous form. 5. The dust particles collide with each other and form into larger particles. This goes on until the particles get to the size of boulders or small asteroids. Once the larger of these particles get big enough to ...
Relative positions of the Sun, Moon and Earth - E
... As the Earth travels around the Sun, it has a companion that travels with it – the Moon. Moons or satellites, are objects made of rock that orbit around planets in the same way that the planet orbits the Sun. MOONS Can you remember how many moons each planet has? Mercury ...
... As the Earth travels around the Sun, it has a companion that travels with it – the Moon. Moons or satellites, are objects made of rock that orbit around planets in the same way that the planet orbits the Sun. MOONS Can you remember how many moons each planet has? Mercury ...
On the Revolutions of Heavenly Spheres
... Planets around Other Stars • Cannot see directly (yet) • Detect via gravitational pull on star – Wobble – Periodic shift of spectral lines – Monitor for many years (several orbits) – Giant planets detectable ...
... Planets around Other Stars • Cannot see directly (yet) • Detect via gravitational pull on star – Wobble – Periodic shift of spectral lines – Monitor for many years (several orbits) – Giant planets detectable ...
How the Solar System formed
... Age of oldest Moon rocks = 4.5 billion years Age of oldest meteorites (meteoroids that survive the plunge to Earth) = 4.56 billion years ...
... Age of oldest Moon rocks = 4.5 billion years Age of oldest meteorites (meteoroids that survive the plunge to Earth) = 4.56 billion years ...
PPT
... Age of oldest Moon rocks = 4.5 billion years Age of oldest meteorites (meteoroids that survive the plunge to Earth) = 4.56 billion years ...
... Age of oldest Moon rocks = 4.5 billion years Age of oldest meteorites (meteoroids that survive the plunge to Earth) = 4.56 billion years ...
Pluto and Solar System Debris
... Charon in Enhanced Color NASA's New Horizons captured this high-resolution enhanced color view of Charon just before closest approach on July 14, 2015. The image combines blue, red and infrared images taken by the spacecraft’s Ralph/Multispectral Visual Imaging Camera (MVIC); the colors are processe ...
... Charon in Enhanced Color NASA's New Horizons captured this high-resolution enhanced color view of Charon just before closest approach on July 14, 2015. The image combines blue, red and infrared images taken by the spacecraft’s Ralph/Multispectral Visual Imaging Camera (MVIC); the colors are processe ...
Notes
... • The outer planets—Jupiter, Saturn, Uranus, and Neptune— are primarily made of hydrogen and helium. • Jupiter and Saturn have thick cloud layers, but are mainly liquid hydrogen. Saturn’s rings are largely particles of ice. Uranus and Neptune have thick atmospheres of hydrogen and helium. ...
... • The outer planets—Jupiter, Saturn, Uranus, and Neptune— are primarily made of hydrogen and helium. • Jupiter and Saturn have thick cloud layers, but are mainly liquid hydrogen. Saturn’s rings are largely particles of ice. Uranus and Neptune have thick atmospheres of hydrogen and helium. ...
Comets - Images
... the nucleus of dust and gas. Radiation pressure from the Sun pushes some of this dust and gas outwards (away from the Sun) to form two tails - one straight and blue (gas and ions), the other curved and white (dust). The gas tail is affected by the solar wind and magnetic field lines. Not all comets ...
... the nucleus of dust and gas. Radiation pressure from the Sun pushes some of this dust and gas outwards (away from the Sun) to form two tails - one straight and blue (gas and ions), the other curved and white (dust). The gas tail is affected by the solar wind and magnetic field lines. Not all comets ...
Lecture 19: Planet Formation I. Clues from the Solar System
... The growth of solid bodies from mm to km size must occur very quickly, but the related physics is poorly understood. ...
... The growth of solid bodies from mm to km size must occur very quickly, but the related physics is poorly understood. ...
Concepts - Waterbury Public Schools
... electromagnetic waves; solar radiation as the major source of Earth’s energy; variation of electromagnetic energy with distance from source; effect of atmosphere on absorption and reflection of solar energy Students • Investigate the effect of distance on the amount of energy received from a light s ...
... electromagnetic waves; solar radiation as the major source of Earth’s energy; variation of electromagnetic energy with distance from source; effect of atmosphere on absorption and reflection of solar energy Students • Investigate the effect of distance on the amount of energy received from a light s ...
Chapter 21
... the exploration of the planets. In this chapter, we begin that detailed study with two goals in mind. First, we search for evidence to test the solar nebula hypothesis for the formation of the solar system. Second, we search for an understanding of how planets evolve once they have formed. The moon ...
... the exploration of the planets. In this chapter, we begin that detailed study with two goals in mind. First, we search for evidence to test the solar nebula hypothesis for the formation of the solar system. Second, we search for an understanding of how planets evolve once they have formed. The moon ...