High-velocity collisions from the lunar cataclysm recorded in
... we performed a suite of impact simulations into Vesta at different velocities. We found that the peak temperatures and volumes of material heated above a given threshold (for example, the closure temperature for Ar loss, causing age reset) were strongly dependent on the impact velocity V . In partic ...
... we performed a suite of impact simulations into Vesta at different velocities. We found that the peak temperatures and volumes of material heated above a given threshold (for example, the closure temperature for Ar loss, causing age reset) were strongly dependent on the impact velocity V . In partic ...
Moon Search Algorithms for NASA`s Dawn
... moons of Mars which were later named Phobos and Deimos, with the 26-inch Refractor Telescope at the Naval Observatory in Washington D.C. [12-13]. With advances in imaging instruments and technologies as well as robotic exploration of the outer solar system, there has been an increase in satellite se ...
... moons of Mars which were later named Phobos and Deimos, with the 26-inch Refractor Telescope at the Naval Observatory in Washington D.C. [12-13]. With advances in imaging instruments and technologies as well as robotic exploration of the outer solar system, there has been an increase in satellite se ...
4373 - Zuber, M. T., H. Y. McSween Jr., R. P. Binzel, L. T. Elkins
... accreted rapidly from the solar nebula in the inner asteroid belt and likely melted due to heat released due to the decay of 26 Al. Analyses of meteorites from the howardite-eucritediogenite (HED) suite, which have been both spectroscopically and dynamically linked to Vesta, lead to a model of the a ...
... accreted rapidly from the solar nebula in the inner asteroid belt and likely melted due to heat released due to the decay of 26 Al. Analyses of meteorites from the howardite-eucritediogenite (HED) suite, which have been both spectroscopically and dynamically linked to Vesta, lead to a model of the a ...
Comprehensive search for natural satellites of Vesta by the Dawn
... support this age (Schenk et al., 2012; Marchi et al., 2012). An alternate and older age determination of these basins (3.5 and 3.7 byr) is presented by Schmedemann et al. (2014), assuming a lunar-like crater production function. Chaotic dynamics and secular perturbations (Wisdom, 1985) have resulted ...
... support this age (Schenk et al., 2012; Marchi et al., 2012). An alternate and older age determination of these basins (3.5 and 3.7 byr) is presented by Schmedemann et al. (2014), assuming a lunar-like crater production function. Chaotic dynamics and secular perturbations (Wisdom, 1985) have resulted ...
Dawn Spacecraft Will Go Asteroid
... T least 100,000 rocky objects called asteroids reside between Mars and Jupiter. Scientists believe that asteroids are the leftover building blocks of our solar system planets. These space rocks orbit the Sun in a large, circular region called the asteroid belt. Locked inside these small bodies are c ...
... T least 100,000 rocky objects called asteroids reside between Mars and Jupiter. Scientists believe that asteroids are the leftover building blocks of our solar system planets. These space rocks orbit the Sun in a large, circular region called the asteroid belt. Locked inside these small bodies are c ...
Exploring the Asteroids
... Solar System As they are ‘living fossils’ from the earliest days of the Solar System, asteroids are fascinating to astronomers. The largest bodies out there have, entirely through chance, survived billions of years of possible collisions and have remained intact ever since they formed. As they are t ...
... Solar System As they are ‘living fossils’ from the earliest days of the Solar System, asteroids are fascinating to astronomers. The largest bodies out there have, entirely through chance, survived billions of years of possible collisions and have remained intact ever since they formed. As they are t ...
4 Vesta
Vesta, minor-planet designation 4 Vesta, is one of the largest objects in the asteroid belt, with a mean diameter of 525 kilometres (326 mi). It was discovered by the German astronomer Heinrich Wilhelm Olbers on 29 March 1807 and is named after Vesta, the virgin goddess of home and hearth from Roman mythology.Vesta is the second-most-massive object in the asteroid belt after the dwarf planet Ceres, and it contributes an estimated 9% of the mass of the asteroid belt.Vesta is the second-largest asteroid, only slightly larger than Pallas, but significantly more massive. Vesta is the last remaining rocky protoplanet (with a differentiated interior) of the kind that formed the terrestrial planets. Numerous fragments of Vesta were ejected by collisions one and two billion years ago that left two enormous craters occupying much of Vesta's southern hemisphere. Debris from these events has fallen to Earth as howardite–eucrite–diogenite (HED) meteorites, which have been a rich source of information about Vesta.Vesta is the brightest asteroid visible from Earth. Its maximum distance from the Sun is slightly greater than the minimum distance of Ceres from the Sun, though its orbit lies entirely within that of Ceres.NASA's Dawn spacecraft entered orbit around Vesta on 16 July 2011 for a one-year exploration and left orbit on 5 September 2012 en route to its final destination, Ceres. Researchers continue to examine data collected by Dawn for additional insights into the formation and history of Vesta.