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NASA Mission in Final Day Before Comet Meetup
Mission controllers at NASA's Jet Propulsion Laboratory in Pasadena, Calif., have relayed final instructions to their comet-bound spacecraft today, Nov. 3.
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NASA's Comet Mission May Face Multiple Jets Nov. 4
Images from NASA's EPOXI mission shows jets emanating from comet Hartley 2.
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NASA Spacecraft on Final Approach Toward Comet
NASA's EPOXI mission spacecraft steadily approaches its target, comet Hartley 2, as it completes its final flight-path adjustment.
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The Man Behind Comet Hartley 2
Malcolm Hartley has seen a whole lot of the universe over the last 40 years, but he'd never had a close-up view of a comet named after him.
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Space Radar Provides a Taste of Comet Hartley 2
A massive space-radar dish in Puerto Rico is providing an appetizing glimpse at a cometary target for a Nov. 4 encounter by NASA's EPOXI mission.
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NASA Spacecraft Preps for Comet Flyby
NASA's EPOXI mission has successfully performed one of its final maneuvers as it prepares for a comet flyby on Nov. 4.
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Five Things About NASA's EPOXI Mission
Here are five quick facts about the EPOXI mission, scheduled to fly by comet Hartley 2 on Nov. 4, 2010.
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New Cometary Phenomenon Greets Approaching Spacecraft
Scientists expected the unexpected during NASA's EPOXI mission flyby of comet Hartley 2. They just didn't expect the unexpected quite so unexpectedly.
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The Comet Cometh: Hartley 2 Visible in Night Sky
A comet that makes its closest approach to Earth this Wednesday, Oct. 20, will be scrutinized even more closely by a NASA spacecraft in a little over two weeks.
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It's Raining Pieces of Comet!
The famous Halley's Comet will pass close to Earth in 2061, but you don't have to wait that long to see a piece of it.
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Comet Hartley 2 11.5 Million Miles From Earth
Comet Hartley 2 is nearing its closest approach to Earth, now at 11.5 million miles away.
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NASA Spacecraft Hurtles Toward Active Comet Hartley 2 →
NASA's Deep Impact/EPOXI spacecraft is hurtling toward Comet Hartley 2 for a breathtaking 435-mile flyby on Nov. 4th.
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NASA Cameras Spot Meteors From Obscure Shower
A handful of bright meteors heralds the October Camelopardalids, a mysterious meteor shower.
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NASA Mission 'E-Minus' One Month to Comet Flyby
Humanity's fifth close up of a comet nucleus is one month away - and counting down.
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NASA's EPOXI Mission Sets up for Comet Flyby
NASA's EPOXI mission successfully performed a trajectory correction maneuver today. The maneuver refined the spacecraft's orbit for a flyby of comet Hartley 2 on Nov. 4.
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Comet Hartley 2 Approaches Earth
It's still 18 million miles away, but Comet Hartley 2 is getting closer to Earth.
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Two Asteroids to Pass by Earth
Two asteroids, several meters in diameter and in unrelated orbits, will pass within the moon's distance of Earth on Wednesday, Sept. 8.
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Watch out for the Super Harvest Moon →
For the first time in almost 20 years, northern autumn is beginning on the night of a full Moon.
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Perseids Complete 2010 August Light Show
The 2010 Perseid meteor shower is drawing to a close after painting brilliant streaks across the August nighttime skies.
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Bright Fireball Kicks Off Perseid Meteor Shower
A meteor entered the atmosphere 70 miles above the town of Paint Rock, Ala., on August 3, leaving a flare that was six times brighter than the planet Venus.
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Planets Align for the Perseids →
You know it's a good night when a beautiful alignment of planets is the second best thing that's going to happen.