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Latest Dawn Stories

NASA Scientists Find Striking Similarity Between Moon And Asteroids
2013-03-26 07:24:40

Lawrence LeBlond for redOrbit.com - Your Universe Online Scientists from NASA´s Lunar Science Institute (NLSI), along with researchers from abroad, have discovered that Earth´s own natural satellite shares a striking similarity with Vesta, and perhaps other large asteroids roaming around the Solar System. The Moffett Field, California-based NLSI found that the same population of high-speed projectiles that bombarded the Moon four billion years ago, also impacted the giant...

Computer Simulations Help Explore Origins Of Our Solar System
2013-02-15 10:00:41

Peter Suciu for redOrbit.com — Your Universe Online Understanding past collisions between celestial bodies, including asteroids, could help researchers better understand the origins of our Solar System. After all, it was through a series of such collisions some four and a half billion years ago that our planetary system was formed. What started as a giant dusty gas cloud combined to form increasingly large clumps, and as these collided and combined, they grew into what we now...

Dawn Has Vesta's Dark Materials In View
2013-01-03 12:54:32

NASA Jet Propulsion Laboratory A new study of images from NASA's Dawn mission examines remarkable, dark-as-coal material that speckles the surface of the giant asteroid Vesta. Scientists are using the images, taken by Dawn's framing camera, to understand the impact environment early in Vesta's evolution. In the most comprehensive analysis of the dark material to date, Dawn scientists describe how this carbon-rich material tends to appear around the edges of two giant impact basins in...

Chinese Probe Gets Up Close And Personal With Asteroid 4179 Toutatis
2012-12-17 08:38:30

[Watch Video: Surface Features of Asteroid Toutatis Revealed By Radar] Lawrence LeBlond for redOrbit.com - Your Universe Online An asteroid by the name of 4179 Toutatis passed close enough to Earth last week that China´s Chang´e-2 probe was able to fly by the object, named for the Celtic deity Teutates by Christian Pollas in 1989, and snap some photos. The asteroid reportedly passed within 2 miles of the probe before swinging back out in Jupiter´s neighborhood....

Did Dawn Mission Find Water-Carved Gullies On Vesta Asteroid?
2012-12-07 16:11:58

Michael Harper for redOrbit.com — Your Universe Online In 2007, NASA launched the Dawn Mission to study the asteroid Vesta and dwarf planet Ceres. Carrying a visible camera, a visible and infrared mapping spectrometer, and a gamma ray and neutron spectrometer, Dawn set out on an 8 year mission to gather a wealth of data from these two celestial bodies. Dawn arrived at the first stop in its journey, the asteroid Vesta, in June 2011 and recently departed for Ceres this...

Vesta May Hold The Secret To Youth
2012-10-31 13:50:22

Lee Rannals for redOrbit.com - Your Universe Online NASA's Dawn spacecraft has revealed data that shows protoplanet Vesta is continually stirring its outermost layer. The data shows that a common form of weathering that affects many airless bodies like Vesta in the inner solar system helps to keep them looking younger by not aging the outermost layer. Findings described in an upcoming issue of the journal Nature show that data indicates that carbon-rich asteroids have been...

Vesta Has Planet-Like Faults
2012-09-27 12:35:00

Lee Rannals for redOrbit.com - Your Universe Online New research reinforces the idea that the asteroid Vesta may actually have more of a history to it than just being a floating space rock. Scientists analyzed data taken by NASA's Dawn spacecraft and found that the enormous troughs that reach across the asteroid may be faults that formed when another asteroid ran into Vesta's south pole. This could indicate that Vesta has a layered interior, a quality shared by planets and large moons....

Water May Have Been Deposited On Vesta Asteroid Long Ago
2012-09-26 14:42:05

Lee Rannals for redOrbit.com — Your Universe Online Astronomers suggest that water may have been delivered to Vesta through a build-up of small particles during an epoch when the Solar System was rich in dust. The team presented their research at the European Planetary Science Congress in Madrid on Wednesday, offering up a radically different hypothesis from the way in which hydrous materials are deposited on other cosmic objects. Using data from NASA's Dawn mission, the team...

asteroid Vesta
2012-09-20 15:09:18

Watch the Video: Hydrogen Hot Spots on Vesta Lee Rannals for redOrbit.com - Your Universe Online According to findings reported in the journal Science, NASA's Dawn spacecraft has revealed signs of hydrated minerals on the giant asteroid Vesta. Dawn did not find actual water ice at Vesta, but it did reveal signs of hydrated minerals delivered by meteorites and dust to the asteroid. "The source of the hydrogen within Vesta's surface appears to be hydrated minerals delivered by...


Latest Dawn Reference Libraries

9_492577401769e5bd3fcb20c80fa3c9a32
2004-10-19 04:45:44

NEAR-Shoemaker Mission -- The Near Earth Asteroid Rendezvous - Shoemaker (NEAR Shoemaker), renamed after its launch in honor of Gene Shoemaker, is an unmanned spacecraft designed to study the near-Earth asteroid Eros from close orbit over a period of a year. The primary scientific objectives of NEAR were to return data on the bulk properties, composition, mineralogy, morphology, internal mass distribution and magnetic field of Eros. Secondary objectives include studies of regolith...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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