AmericaSpace Launch Countdown

Next Launch SMAP on a Delta II 7320 rocket from Vandenberg AFB, CA
scheduled for:
31 Jan 15 14:20:42 GMT
31 Jan 15 6:20:42 PST
31 Jan 15 9:20:42 Eastern

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Water on Vesta? Gullies Suggest Wet Debris Flows in the Past, Study Finds

Image of curved gullies and fan-shaped deposits in Cornelia crater on Vesta. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn spacecraft is now very close to the dwarf planet Ceres, but there are some interesting new findings from its previous visit to the asteroid Vesta. Curved gullies on its surface suggest that small amounts of water may […]

Dawn’s Greatest Glimpse Yet of Ceres Hints at Startling Revelations Soon to Come

GIF animation of Ceres images taken by Dawn spacecraft on Jan. 13, 2015. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/PSI

We’ve wondered about Ceres‘ nature and true identity for over two centuries, ever since it was discovered on New Year’s Day, 1801, by Giuseppe Piazzi of Italy. It’s been alternately classified as a planet, asteroid, and more recently as […]

NASA’s Revolutionary Dawn Spacecraft Begins Final Approach Phase to Dwarf Planet Ceres

This artist’s concept shows NASA’s Dawn spacecraft heading toward the dwarf planet Ceres. Credit: NASA/JPL-Caltech See below Dawn’s 1st resolved image of Ceres!

After a seven-year trek, and at the dawn of a new year, NASA’s revolutionary Dawn spacecraft has begun the final approach phase to dwarf planet Ceres for an unprecedented examination of […]

Dawn Spacecraft Takes Its Best-Yet Image of Dwarf Planet Ceres

The best image of dwarf planet Ceres obtained so far by the Dawn spacecraft, from 740,000 miles (1.2 million kilometers) away. Images will get much better as the spacecraft approaches Ceres over the next few months. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn spacecraft continues to make its way closer to a world which still hasn’t […]

Cosmic Ray Hit Causes Small Delay at Dawn's Rendezvous With Ceres Early Next Year

An artist’s concept of NASA’s Dawn spacecraft exploring Vesta and Ceres in the asteroid belt between Mars and Jupiter. Dawn had recently experienced an anomaly in its ion propulsion system resulting from a cosmic ray hit, which will cause a small delay to the spacecraft’s rendezvous with Ceres next year. Image Credit: NASA

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NASA Announces Asteroid Grand Challenge

Image Credit: NASA

WASHINGTON — NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.

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What Will Dawn Find At Ceres?

The Dawn spacecraft has left Vesta and is currently on its way to Ceres, which it should reach in 2015. Image Credit: NASA

NASA’s Dawn spacecraft was launched September 27, 2007, on a unique  mission: to explore the two most massive objects in the asteroid belt, Vesta and Ceres. Propelled by an ion engine, […]

How to Target an Asteroid

This spectacular image of comet Tempel 1 was taken 67 seconds after it obliterated Deep Impact’s impactor spacecraft. Image Credit: NASA/JPL-Caltech/UMD

Like many of his colleagues at NASA’s Jet Propulsion Laboratory, Pasadena, Calif., Shyam Bhaskaran is working a lot with asteroids these days. And also like many of his colleagues, the deep space navigator […]

The Long and Storied Path to Human Asteroid Exploration

This June 1978 artist’s concept shows a space solar power system surrounded by an active asteroid retrieval mission. A NASA-sponsored study on space manufacturing held at Ames Research Center provided much of the technical basis for the painting.Image Credit: NASA/Denise Watt

Within NASA’s new FY2014 budget proposal lies a project known as the Asteroid […]

Mystery Gullies Discovered on Asteroid Vesta

Gullies in the crater Cornelia on Vesta. Image Credit: NASA / JPL-Caltech / UCLA/MPS / DLR / IDA

The Dawn spacecraft left behind the giant asteroid Vesta last September, and is now en route to the even bigger dwarf planet Ceres, but scientists are still busy studying all of the data that was sent […]