Results 271 to 280 of about 639,811 (317)
Improved Limits on Relativistic Interstellar Objects near Earth
James M. Cline
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Strong Nongravitational Accelerations and the Potential for Misidentification of Near-Earth Objects
Aster G. Taylor +7 more
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The Near-Earth Object Population
Icarus, 2000We examine the dynamics of a sample of 117 near-Earth objects (NEOs) over a time scale of 60 Myr. We find that while 10–20% end their lifetimes by striking a terrestrial planet (usually Venus or Earth), more than half end their lives in a Sun-grazing state, and about 15% are ejected from the Solar System.
Patrick Michel +2 more
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Distribution of the near-earth objects
Solar System Research, 2011This paper analyzes the distribution of the orbits of near-Earth minor bodies from the data on more than 7500 objects. The distribution of large near-Earth objects (NEOs) with absolute magnitudes of H < 18 is generally consistent with the earlier predictions (Bottke et al., 2002; Stuart, 2003), although we have revealed a previously undetected maximum ...
Boris Shustov +2 more
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INEO—Imaging of near-Earth objects
Acta Astronautica, 1994Abstract INEO is a program of four explorer flyby missions for imaging near-Earth objects by means of small spin stabilized spacecrafts. A low-cost approach is achieved by using existing hardware and available scientific instrumentation. For the first mission the payload consists of the flight space model of the Halley multicolour camera and three ...
Iglseder, H. (1) +13 more
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2014
Asteroids and comets probably contributed significantly to the delivery of water and organic materials to the early Earth necessary for the development of life. However, later impacts of near-Earth objects almost certainly played a role in mass extinctions and evolution.
Alan W. Harris +3 more
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Asteroids and comets probably contributed significantly to the delivery of water and organic materials to the early Earth necessary for the development of life. However, later impacts of near-Earth objects almost certainly played a role in mass extinctions and evolution.
Alan W. Harris +3 more
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Physical characterization of the near-Earth object population
The European Physical Journal Plus, 2017The Near-Earth Object (NEO) population, being the remnants of the building blocks that originally formed our solar system, allows us to understand the initial conditions that were present in the protosolar nebula. Its investigation can provide crucial information on the origin and early evolution of the solar system, and shed light on the delivery of ...
Ieva, S. +5 more
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The debiased compositional distribution of Near-Earth Objects
2022<p>We report 491 new near-infrared spectroscopic measurements of 420 Near-Earth Objects (NEOs) collected on NASA&#8217;s IRTF in the context of MITHNEOS (PI: DeMeo). The measurements were combined with previously published data (Binzel et al.
Michaël Marsset +12 more
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The population of near-Earth objects discovered by Spacewatch [PDF]
Earth, Moon, and Planets, 1996 In the past three years the Spacewatch program at the University of Arizona’s Lunar and Planetary Laboratory has discovered ~45% of the new Earth Approaching asteroids and found evidence for an unheralded population of small (~10m) objects in the inner solar system.
Tom Gehrels, Robert Jedicke
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2017
The chances of a random piece of rock striking Earth still exists, but probably to a much reduced level of threat. During the early years in the creation of our Solar System, there was plenty of debris that had yet to settle into some form and order, with constant collisions of large bodies before any structure was imposed.
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The chances of a random piece of rock striking Earth still exists, but probably to a much reduced level of threat. During the early years in the creation of our Solar System, there was plenty of debris that had yet to settle into some form and order, with constant collisions of large bodies before any structure was imposed.
openaire +2 more sources