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Latest Asteroids Stories

8fd584b448d9990910d2f96712e149cd
2011-08-12 10:50:00

NASA's Dawn spacecraft, designed to complete a year-long study of the asteroid Vesta, made its first detailed observations of the surface on Thursday from a distance of 1,700 miles. Dawn will spend the next several weeks taking images from that altitude. Afterward, it will spiral closer to the asteroid to get a better view. The probe was launched in September 2007 and arrived at its destination in July. Dawn is beginning the first of four planned science orbits during the spacecraft's...

2011-07-29 06:11:29

NASA will host a news conference on Monday, Aug. 1, at noon EDT, to discuss the Dawn spacecraft's successful orbit insertion around Vesta on July 15 and unveil the first full-frame images from Dawn's framing camera. The news conference will be held in the Von Karman auditorium at NASA's Jet Propulsion Laboratory (JPL), 4800 Oak Grove Dr., Pasadena, Calif. Journalists also may ask questions from participating NASA locations or join by phone. To obtain dial-in information, journalists must...

673423ac5eaf0c16d62d771ce9104dfe
2011-07-29 06:10:00

Dawn took this image over Vesta's northern hemisphere after the spacecraft completed its first passage over the dark side of the giant asteroid. It is northern hemisphere winter on Vesta now, so its north pole is in deep shadow. The Dawn science team is working to determine the significance of the distinct features in this image, which include large grooves or ridges extending for great distances around Vesta. This image was taken by Dawn's framing camera on July 23, from a distance of 3,200...

2011-07-28 13:32:00

WASHINGTON, July 28, 2011 /PRNewswire-USNewswire/ -- NASA will host a news conference on Monday, Aug. 1, at noon EDT, to discuss the Dawn spacecraft's successful orbit insertion around Vesta on July 15 and unveil the first full-frame images from Dawn's framing camera. The news conference will be held in the Von Karman auditorium at NASA's Jet Propulsion Laboratory (JPL), 4800 Oak Grove Dr., Pasadena, Calif. Journalists also may ask questions from participating NASA locations or join by...

2011-07-28 07:48:37

NASA will host a news conference on Monday, Aug. 1, at 2 p.m. EDT, to discuss the Dawn spacecraft's successful orbit insertion around Vesta on July 15 and unveil the first full-frame images from Dawn's framing camera. The news conference will be held in the Von Karman auditorium at NASA's Jet Propulsion Laboratory (JPL), 4800 Oak Grove Dr., Pasadena, Calif. Journalists also may ask questions from participating NASA locations or join by phone. To obtain dial-in information, journalists must...

c20011f42837baca76c5246539ba0544
2011-07-22 09:45:00

Dawn took this image during its current orbit of Vesta, traveling from the day side to the night side. The large structure near the south pole that showed up so prominently in previous images is visible in the center of the illuminated surface. Compared to other images, this one shows more of the surface beneath the spacecraft in the shadow of night. Vesta turns on its axis once every five hours and 20 minutes. Dawn entered orbit around Vesta on July 15, 2011, and will spend a year orbiting...

2011-07-18 13:58:00

PASADENA, Calif., July 18, 2011 /PRNewswire-USNewswire/ -- NASA's Dawn spacecraft has returned the first close-up image after beginning its orbit around the giant asteroid Vesta. On Friday, July 15, Dawn became the first probe to enter orbit around an object in the main asteroid belt between Mars and Jupiter. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The image taken for navigation purposes shows Vesta in greater detail than ever before. When Vesta captured Dawn into...

571327main_pia14313-43_946-710
2011-07-18 14:50:00

NASA's Dawn spacecraft returned the first close-up image of the asteroid Vesta on Sunday. The space agency said its spacecraft became the first probe to enter orbit around an object in the main asteroid belt between Mars and Jupiter on Friday, July 15. NASA said the image shows Vesta in greater detail than ever before.  Vesta is 330 miles in diameter and the second most massive object in the asteroid belt. Dawn entered the asteroid's orbit within about 9,900 miles between the...

26831e6eba1a672ed5fdc5ea71399ba5
2011-07-17 05:25:00

NASA's Dawn probe successfully entered orbit around the asteroid Vesta on Saturday, the US space agency announced in a press release early Sunday morning. It is the first spacecraft to successfully enter orbit around an object in the main asteroid belt, located between Mars and Jupiter, and will spend the next year studying the potato-shaped asteroid before departing for a dwarf planet named Ceres next July. "Today, we celebrate an incredible exploration milestone as a spacecraft enters orbit...

2011-07-17 01:43:00

PASADENA, Calif., July 17, 2011 /PRNewswire-USNewswire/ -- NASA's Dawn spacecraft on Saturday became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO ) Dawn will study the asteroid, named Vesta, for a year before departing for a second destination, a dwarf planet named Ceres, in July 2012. Observations will provide unprecedented data to help scientists understand the...


Latest Asteroids Reference Libraries

6_79b1bf0245952aa2e5b479867b1c322b2
2004-10-19 04:45:41

Asteroid -- An asteroid, also called a minor planet or planetoid, is a member of a group of small, planet-like bodies that are part of our solar system. They are believed to be remnants of the interstellar clouds, nebula, that were not incorporated into planets during the formation of the solar system. The largest asteroid in the inner solar system is Ceres with a diameter of 1003 km. It also was the first to be discovered, by Giuseppe Piazzi on January 1, 1801. Nowadays, over 9000...

4_2263b8f4e602bddd69c225b3bc2c46aa2
2004-10-19 04:45:41

Asteroid Belt -- The Asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. It is believed that, during the first million years of the solar system history, planets formed by accretion of planetesimals. Ripetute collisions led to the familiar rocky planets and to the gas giant's cores. However, in this zone of the system the strong gravity of Jupiter inhibited the final stages...

3_8254e27b9fccec1aaab3b9785e39d79f2
2004-10-19 04:45:40

Near-Earth Asteroid -- Near-Earth asteroids (NEAs) are asteroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger, as well as being most easily accessible for spacecraft from Earth. In fact, some near-Earth asteroids can be reached with much less ΔV than the Moon. The most famous near-Earth asteroid is 433 Eros that was visited by NASA's Near Earth Asteroid Rendezvous probe. A few hundred such near-Earth asteroids are known, ranging in size up...

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