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    1. Asteroid Toutatis
    ... orbit extends from just inside Earth's orbit to the main asteroid belt between Mars ... to the plane of the Earth's orbit than any known Earth-orbit-crossing asteroid ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/toutatis.htm -- 12.5 Кб -- 15.03.1998
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    2. Appendix C - The Probability of Collisions with Earth
    ... There are now more than 150 asteroids known that come nearer to the Sun than the outermost point of Earth's orbit. ... to 6-mile) class, 15 of them in short-period orbits that pass inside Earth's orbit, and an unknown number of long-period comets ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/comet/appendc.htm -- 9.5 Кб -- 15.03.1998
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    3. Magellan Mission to Venus
    ... Atlantis took Magellan into low Earth orbit, where it was released from the shuttle ... Magellan and its Inertial Upper Stage (IUS) booster rocket, into low Earth orbit ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/magellan.htm -- 7.9 Кб -- 15.03.1998
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    4. Educator's Guide to Eclipses
    ... Because the Moon's orbit around Earth is an ellipse, not a circle, the Moon's distance from Earth varies. ... Earth's orbit around the Sun is also an ellipse, and during January, Earth is at its closest point to the Sun. ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/edu/eclipses.htm -- 6.6 Кб -- 15.03.1998
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    5. Asteroid Introduction
    ... Sixteen asteroids have a diameter of 240 km or greater. They have been found inside Earth's orbit to beyond Saturn's orbit. ... Some have orbits that cross Earth's path and some have even hit the Earth in times past. ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/asteroid.htm -- 9.6 Кб -- 15.03.1998
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    6. Asteroid Geographos
    ... Geographos . Geographos is classified as an Earth-crossing asteroid because its orbit can evolve to intersect Earth's orbit. ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/geograph.htm -- 4.8 Кб -- 15.03.1998
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    7. Precursors to the Landing Missions
    ... CSM/LM tests in low and high Earth orbits - for the simple reason that development ... By March 1969, a LM was finally ready for a manned test flight in Earth orbit. ... to fly Apollo 8 when that mission was slated as a LM test in low Earth orbit ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/apopre.htm -- 25.8 Кб -- 15.03.1998
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    8. Chronology of Space Exploration
    ... Space probe is now in a decayed earth-moon orbit. ... Mars 1960A - USSR Mars Probe - (October 10, 1960) Failed to reach Earth orbit. ... Mars 1960B - USSR Mars Probe - (October 14, 1960) Failed to reach Earth orbit. ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/craft1.htm -- 51.8 Кб -- 15.03.1998
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    9. Galileo to Jupiter
    ... fired to accelerate the spacecraft out of Earth orbit toward the planet Venus ... spacecraft's radio link to Earth and the probe-to-orbiter radio link are also used ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/galileo.htm -- 11.7 Кб -- 15.03.1998
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    10. Chronology of Space Exploration
    ... 1989 - 1994) Magellan was released into Earth's orbit from a space shuttle and then ... Space probe is now in a decayed earth-moon orbit. ... Mars 1960A - USSR Mars Probe - (October 10, 1960) Failed to reach Earth orbit. ...
    [ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/craft2.htm -- 58.2 Кб -- 15.03.1998
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