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Latest Astronomy on Mars Stories

9ee97378cb23cb21836f9069088d4a061
2007-08-12 07:30:00

Got a calendar? Circle this date: Sunday, August 12th. Next to the circle write "all night" and "Meteors!" Attach the above to your refrigerator in plain view so you won't miss the 2007 Perseid meteor shower. "It's going to be a great show," says Bill Cooke of NASA's Meteoroid Environment Office at the Marshall Space Flight Center. "The Moon is new on August 12th--which means no moonlight, dark skies and plenty of meteors." How many? Cooke estimates one or two Perseids per minute at the...

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2007-08-07 15:51:18

As the Perseid meteor shower becomes visible in all its glory on August 13, natural fireworks will fill the sky. Showers of meteors, or "Ëœshooting stars', appear as bright streaks of light in the sky. The display runs through the night. Dust trails are left behind by every comet as it nears the Sun. As Earth's orbit crosses the dust ejected by the comet Swift-Tuttle, a regular occurrence every August, it provides a fabulous spectacle for viewers on Earth. As the particles enter the...

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2007-03-03 00:20:00

Picture this: The year is 2025 and you're on the moon. "Home" is 100 meters away"”an outpost on the rim of Shackleton Crater. NASA started building it five years earlier, and it is growing fast. You're one of the construction workers. As always in these polar regions, the sun hangs low, barely above the craggy lunar horizon. You adjust your visor. It amazes you how bright a low sun can be when there's no atmosphere to dim it. Suddenly, the lights go out. Up in the sky, a big black disk...

2006-11-02 12:00:23

By CLAIR WOOD In his book on the Leonid meteor showers, "The Heavens on Fire," Mark Littmann writes that the Leonid meteor storm of 1833 was so intense, estimated from records to be in excess of 72,000 an hour, that terrified viewers thought the world was coming to an end. Some American Indian tribes called it "the year the stars fell." Approximately every 33 years, the Leonids put on a remarkable display. In 1966 an intense storm gave estimates of 144,000 meteors an hour which led, as 1999...

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2006-10-25 17:40:00

This 360-degree view, called the "McMurdo" panorama, comes from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Spirit. From April through October 2006, Spirit has stayed on a small hill known as "Low Ridge." There, the rover's solar panels are tilted toward the sun to maintain enough solar power for Spirit to keep making scientific observations throughout the winter on southern Mars. This view of the surroundings from Spirit's "Winter Haven" is presented in approximately true...

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2006-08-11 18:40:00

NASA -- Like the fabled tortoise that, in the race with the hare, moves slowly yet accomplishes much, NASA's Mars Exploration Rover Spirit has continued to make progress little by little, while essentially running in place. Eking out a steady stream of scientific data as solar power levels have plunged to a seasonal low during the rover's second Martian mid-winter, Spirit has discovered meteorites that might otherwise have been missed and completed work on a 360-degree, full-color panorama...

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2006-02-21 07:25:07

ESA -- These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, show the fast-moving shadow of the moon Phobos as it moved across the Martian surface. The HRSC obtained these unique images during orbit 2345 on November 10, 2005. These observations would not have been possible without the close co-operation between the camera team at the Institute of Planetary Research at DLR and the ESA teams, in particular the mission engineers at ESA's...

2005-10-28 12:25:00

LOS ANGELES -- Mars is ready for another close-up. For the second time in nearly 60,000 years, the Red Planet will swing unusually close to Earth this weekend, appearing as a yellow twinkle in the night sky. Mars' latest rendezvous will not match its record-breaking approach to Earth in 2003, when it hovered from 35 million miles away. But more skygazers this time around can glimpse the fourth rock from the sun because it will glow above the horizon. "This is the best we're going to see...

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2005-08-11 06:15:00

Mars joins the Perseid meteor shower for a beautiful display on August 12th. NASA -- Got a calendar? Circle this date: Friday, August 12th. Next to the circle write "before sunrise" and "Meteors!" Attach all of the above to your refrigerator in plain view so you won't miss the 2005 Perseid meteor shower. The Perseids come every year, beginning in late July and stretching into August. Sky watchers outdoors at the right time can see colorful fireballs, occasional outbursts and, almost always,...

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2005-05-04 16:09:29

SpaceWeather.com -- The eta Aquarid meteor shower peaks on May 5th and 6th. The best time to look, no matter where you live, is during the hours before local sunrise on both days. This is mainly a southern hemisphere shower, but northern observers can see it, too. In the United States, for example, observers far from city lights might see 5 to 10 meteors per hour. In Australia or South America, rates are better, between 15 and 60 meteors per hour. This year (2005) the eta Aquarid meteors will...


Latest Astronomy on Mars Reference Libraries

7_9ed77167bb9b6f0379e955473d8eead32
2004-10-19 04:45:43

Positional Astronomy -- Positional astronomy is the study of the positions of celestial objects. This is the oldest branch of astronomy and dates back to antiquity. Observations of celestial objects are important for religious and astrological purposes, as well as for timekeeping. Ancient structures associated with positional astronomy include: -- Chichn Itz -- The Medicine Wheel -- The Pyramids -- Stonehenge -- The Temple of the Sun The unaided human eye can...

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2004-10-19 04:45:41

Perseids Meteor Shower -- Like most meteor showers, the Perseids are caused by comet debris. As comets enter the inner solar system, they are warmed by the sun and peppered by the solar wind, which produces the familar tails that stretch across the night sky when a bright comet is close to Earth. Comet tails are made of tiny pieces of ice, dust, and rock which are spewed into interplanetary space as they bubble off the comet's nucleus. When Earth encounters these particles on its...

4_e0f932ed4e92d817020bb78521ddbe5c2
2004-10-19 04:45:41

The Moon -- The Moon is the largest satellite of the Earth, and is occasionally called Luna (Latin for moon) to distinguish it from the general use of the word "moon". The Moon is distinguished from the satellites of other planets by its initial capital letter; the other moons are described in the natural satellite article. The words moon and month come from the same Old English root word. The Moon makes a complete orbit of the celestial sphere about every four weeks. Each hour the...

4_81f631e16d8d1d35870c180f342c83a12
2004-10-19 04:45:40

The Planet Mars -- in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Physical Characteristics Mars has a striking red appearance, and in its most favorable position for viewing, when it is opposite the sun, it is twice as bright as Sirius, the brightest star. Mars has a diameter of 4,200 mi (6,800 km), just over half the diameter of the earth, and its mass is only 11% of the earth's mass. The planet has a very thin atmosphere consisting...

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2004-10-19 04:45:40

Mars' Moon Phobos -- in astronomy, innermost moon, or natural satellite, of Mars. Phobos orbits Mars at a distance of only 9,378 km (5,627 mi), closer to its planet than any other moon in the solar system. In fact, it is so close that the force of Mars's gravity is stronger than the force keeping the moon in its orbit, so the radius of Phobos's orbit is decreasing at the rate of about 1.8 m (about 6 ft) per century. In 40 million years, Phobos will either break apart into a ring...

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