NASA releases first closeups of asteroid (photos)

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  • 01vestajpg.jpg

    After traveling 1.7 billion miles over four years, NASA's Dawn spacecraft has begun sending images of the asteroid Vesta back to Earth. NASA will begin the investigation of Vesta in more detail after it maneuvers the spacecraft into an orbit about 1,700 miles from the asteroid.

    Here is the first full-frame photo of Vesta taken on July 24 from a distance of about 3,200 miles. Vesta is abou 114 million miles from Earth.

    "We have been calling Vesta the smallest terrestrial planet," said Chris Russell, Dawn's principal investigator at UCLA. "The latest imagery provides much justification for our expectations. They show that a variety of processes were once at work on the surface of Vesta and provide extensive evidence for Vesta's planetary aspirations."

    NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 02vestadark.jpg

    This view of the dark side of Vesta was taken from a distance of about 3,200 miles.

    NASA describes the instruments brought aboard Dawn:

    "In addition to the framing camera, Dawn's instruments include the gamma ray and neutron detector and the visible and infrared mapping spectrometer. The gamma ray and neutron detector uses 21 sensors with a very wide field of view to measure the energy of subatomic particles emitted by the elements in the upper yard (meter) of the asteroid's surface. The visible and infrared mapping spectrometer will measure the surface mineralogy of both Vesta and Dawn's next target, the dwarf planet Ceres."

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 04vesta.jpg

    Here's an image of the south pole of Vesta. This asteroid could be the origin of many meteors that have hit Earth.

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

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    This set of three craters is in the northern hemisphere of Vesta. They've been nicknamed "Snowman."

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 06vesta.jpg

    he south equatorial region shows some interesting craters.

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 03vesta.jpg

    The south polar region and its large bump is shown by Dawn days before it arrived at Vesta.

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 07vesta.jpg

    Here's the size of Vesta compared to the 8 other asteroids that humans have made close contact with.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 08vesta.jpg

    One of Dawn's first images of Vesta on its approach shows the large bump on its surface.

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 09vestastripes.jpg

    Vesta's equatorial region is marked by grooves.

    Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

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    This is what Vesta looks like from Earth courtesy of the Hubble Space Telescope.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 12dawn.gif

    This should give you an indication of the size of the Dawn spacecraft as scientists prepared it for launch.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

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    Here is the Dawn spacecraft with its ion propulsion system installed.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 14ion1_300.gif

    The ion propulsion system goes through a test on Earth. Dawn has three 30-centimeter-diameter (12-inch) ion thrust units. It produces an electrical charge to accelerate ions from xenon fuel that will be 10 times faster than chemical fuel.

    The spacecraft uses only 10 ounces of fuel per day and would accelerate on an Earth highway from 0 to 60 miles per hour in 4 days. But without gravity in space, its got speed to burn.

     

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 14vesta.gif

    Here's what the Dawn spacecraft must look like with its solar panels fully extended as it orbits Vesta.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

  • 16ceres.gif

    Dawn's next target will be the dwarf planet Ceres - seen here through the Hubble.

    This post was originally published on Smartplanet.com

    Caption by: Andy Smith

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NASA showed off the first set of images from the asteroid Vesta which is located 114 million miles from Earth.

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After traveling 1.7 billion miles over four years, NASA's Dawn spacecraft has begun sending images of the asteroid Vesta back to Earth. NASA will begin the investigation of Vesta in more detail after it maneuvers the spacecraft into an orbit about 1,700 miles from the asteroid.

Here is the first full-frame photo of Vesta taken on July 24 from a distance of about 3,200 miles. Vesta is abou 114 million miles from Earth.

"We have been calling Vesta the smallest terrestrial planet," said Chris Russell, Dawn's principal investigator at UCLA. "The latest imagery provides much justification for our expectations. They show that a variety of processes were once at work on the surface of Vesta and provide extensive evidence for Vesta's planetary aspirations."

NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

 

This post was originally published on Smartplanet.com

Caption by: Andy Smith

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