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ARTEMIS Spacecraft Prepare for Lunar Orbit
ARTEMIS Spacecraft Prepare for Lunar Orbit
They've almost arrived. It took one and a half years, over 90 orbit maneuvers, and -- wonderfully -- many gravitational boosts and only the barest bit of fuel to move two spacecraft from their orbit around Earth to their new home around the Moon.Read More...
MESSENGER Provides New Data about Mercury
MESSENGER Provides New Data about Mercury
After nearly three months in orbit about Mercury, MESSENGER's payload is providing a wealth of new information about the planet closest to the sun, as well as a few surprises.Read More...
A Big Surprise from the Edge of the Solar System
A Big Surprise from the Edge of the Solar System
Voyager mission scientists say the probes have just sent back some very big news indeed: It's bubbly out there.Read More...
Timeline of Martian Volcanism
Timeline of Martian Volcanism
The volcanoes on Mars, though inactive, stand as proof of past volcanic activity whose timing, duration and cessation are hot topics in planetary science.Read More...
Moon's Rough 'Wrinkles' Reveal Clues To Its Past
Moon's Rough 'Wrinkles' Reveal Clues To Its Past
Written on the moon's weary face are the damages it has endured for the past 4-1/2 billion years. But they only hint at the processes that once acted-and act today-to shape the surface.Read More...
Science Highlights from Mercury's Orbit
Science Highlights from Mercury's Orbit
As the first spacecraft to orbit the planet Mercury, MESSENGER has the opportunity to make many observations of the solar system's innermost planet that had not previously been possible.Read More...
Spiders in Space -- The Sequel!
Spiders in Space -- The Sequel!
The very idea of spiders in space brings to mind campy, black and white horror films involving eight-legged monsters. In actuality, it is a scientific investigation called Commercial Generic Bioprocessing Apparatus Science Insert-05.Read More...
Meteors from Halley's Comet
Meteors from Halley's Comet
Looking for an adventure? Get up in the wee hours of the morning May 6th and head out into the country, far from the city lights. You won't be alone. The birds will be up and singing about the coming dawn, and about the eta Aquarid meteor shower.Read More...
Solar Activity Heats Up
Solar Activity Heats Up
If you've ever stood in front of a hot stove, watching a pot of water and waiting impatiently for it to boil, you know what it feels like to be a solar physicist.Read More...
Dawn Approaches Asteroid Vesta
Dawn Approaches Asteroid Vesta
After 3 ½ years of thrusting silently through the void, NASA's Dawn spacecraft is on the threshold of a new world. It's deep in the asteroid belt, less than 4 months from giant asteroid Vesta.Read More...
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Last Updated: 29 Jul 2014