News tagged with closest approach
Green Comet Approaches Earth
Space & Earth / Space Exploration
Feb 05, 2009 |
4.8 / 5 (9) |
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In 1996, a 7-year-old boy in China bent over the eyepiece of a small telescope and saw something that would change his life--a comet of flamboyant beauty, bright and puffy with an active tail. At first he ...
Cassini Prepares to Swoop by Saturn's Geyser-Spewing Moon
Space & Earth / Space Exploration
Aug 07, 2008 |
4.2 / 5 (10) |
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(PhysOrg.com) -- Fractures, or "tiger stripes," where icy jets erupt on Saturn's moon Enceladus will be the target of a close flyby by the Cassini spacecraft on Monday, Aug. 11.
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Rosetta probe lined up nicely for Earth approach
Space & Earth / Space Exploration
Oct 28, 2009 |
4.5 / 5 (2) |
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(PhysOrg.com) -- Following the first and primary trajectory correction manoeuvre 22 October, Rosetta is lined up nicely for the approach to Earth. The manoeuvre provided an 8.8 cm/s change in orbital velocity ...
Rosetta approach on schedule
Space & Earth / Space Exploration
Nov 06, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- After the trajectory correction manoeuvre on 22 October, Rosetta has lined up on a near-perfect Earth approach path. The manoeuvre was so precise that mission controllers decided not to use ...
Asteroid to Make Rare Close Flyby of Earth
Space & Earth / Space Exploration
Jan 24, 2008 |
4.6 / 5 (14) |
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Scientists are monitoring the orbit of asteroid 2007 TU24. The asteroid, believed to be between 150 meters (500 feet) and 610 meters (2,000 feet) in size, is expected to fly past Earth on Jan. 29, with its ...
MESSENGER Returns Images from Oct. 6 Mercury Fly-By
Space & Earth / Space Exploration
Oct 07, 2008 |
4.3 / 5 (8) |
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MESSENGER is the first mission sent to orbit the planet closest to the sun. On Oct. 6, 2008, at roughly 4:40 a.m. ET, MESSENGER flew by Mercury for the second time this year. During the encounter, the probe ...
Rosetta sees a living planet
Space & Earth / Space Exploration
Nov 13, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- Images and data taken just before closest approach were downloaded this morning, and they show the lights of North America in the night and a glowing Southern Hemisphere.
Chandra examines Jupiter during new horizons approach
Mar 01, 2007 |
4.3 / 5 (7) |
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On February 28, 2007, NASA's New Horizons spacecraft made its closest approach to Jupiter on its ultimate journey to Pluto. This flyby gave scientists a unique opportunity to study Jupiter using the package ...
Stunning view of Rosetta skimming past Mars
Space & Earth / Space Exploration
Feb 26, 2007 |
4.1 / 5 (7) |
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This stunning view, showing portions of the Rosetta spacecraft with Mars in the background, was taken by the Rosetta Lander Imaging System (CIVA) on board Rosetta’s Philae lander just four minutes before the ...
Last visit home for ESA's comet chaser Rosetta
Space & Earth / Space Exploration
Oct 20, 2009 |
5 / 5 (6) |
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ESA's Rosetta comet chaser will swing by Earth on 13 November to pick up orbital energy and begin the final leg of its 10-year journey to the outer Solar System. Several observations of the Earth-Moon system ...
Rosetta closes in on Earth -- a second time
Space & Earth / Space Exploration
Nov 08, 2007 |
4.2 / 5 (6) |
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ESA’s comet chaser, Rosetta, is on its way to its second close encounter with Earth on 13 November. The spacecraft’s operators are leaving no stones unturned to make sure Earth’s gravity gives it the exact ...
Like eavesdropping at a party
Biology /
Jul 31, 2008 |
2.8 / 5 (4) |
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Cells rely on calcium as a universal means of communication. For example, a sudden rush of calcium can trigger nerve cells to convey thoughts in the brain or cause a heart cell to beat. A longstanding mystery has been how ...
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