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Last updated on April 16, 2014 at 6:04 EDT
Stanford Researchers Model Massive Asteroid Impact

Stanford Researchers Model Massive Asteroid Impact

Brett Smith for redOrbit.com - Your Universe Online Earth was irrevocably changed when the dinosaurs were wiped out about 65 million years ago by a massive asteroid, but a much bigger asteroid that struck the Earth nearly 3.3 billion years ago...

Latest Impact crater Stories

mercury
2014-04-05 05:12:23

redOrbit Staff & Wire Reports - Your Universe Online Using new data obtained by the MESSENGER spacecraft, researchers from Brown University in Rhode Island have discovered that explosive volcanic activity has been occurring throughout most of Mercury’s history, meaning that the planet has had the volatile compounds necessary for those eruptions for longer than anticipated. The findings, which are detailed in a recent edition of the Journal of Geophysical Research: Planets, are...

John Lennon Shines On: IAU Names Mercury Crater After Rock Legend
2013-12-20 13:34:02

Gerard LeBlond for redorbit.com - Your Universe Online John Lennon was born on October 9, 1940 in Liverpool, England. He started his first band, The Quarrymen, while still in high school. After Paul McCartney and George Harrison joined the band the name was changed to The Beatles. He and his band mates became rock legends, but John met a tragic end on December 8, 1980. Now Lennon, along with nine other notable celebrities of the past, have been honored by having impact craters on...

Mapping The Dinosaur-Killing Yucatan Peninsula Asteroid Impact Site
2013-12-10 06:29:28

April Flowers for redOrbit.com - Your Universe Online An asteroid or comet crashed into a shallow sea near what is now the Yucatan Peninsula of Mexico approximately 65 million years ago. A firestorm and global dust cloud resulted, causing the extinction of many land plants and large animals, including most of the dinosaurs. Researchers from the Monterey Bay Aquarium Research Institute (MBARI) presented evidence this week at a meeting of the American Geophysical Union (AGU) that remnants...

Lunar Impact Crater Has A Diverse Subsurface Mineralogy
2013-12-10 05:53:55

redOrbit Staff & Wire Reports - Your Universe Online The presence of a diverse group of minerals in the largest lunar impact crater could help scientists gain new insight into the Moon’s interior, as well as the evolution of its crust and mantle, claims new research appearing online in Journal of Geophysical Research: Planets. Dan Moriarty, a graduate student from Brown University, and his colleagues analyzed data collected from the Moon Mineralogy Mapper instrument aboard India's...

Chesapeake Bay Impact Crater Is Home To Oldest Seawater On Earth
2013-11-22 04:32:34

[ Watch the Video: Old Water Found In The New World ] redOrbit Staff & Wire Reports - Your Universe Online US Geological Survey (USGS) hydrologists drilling into the largest crater in the country have stumbled across an amazing discovery – the oldest body of seawater ever unearthed. The water, which according to Discovery News is at least 100 million years old, was found over one kilometer beneath Chesapeake Bay in Virginia. The seawater is believed to have come from the...

A Peek Into Mars Past
2013-11-14 11:41:34

[ Watch The Video: The Evolution Of Mars ] Lee Rannals for redOrbit.com - Your Universe Online NASA released a new video showing how its Mars Atmosphere and Volatile Evolution (MAVEN) mission will be able to look back at the history of the Red Planet. Mars is a cold and barren dessert with red soil and little atmosphere. However, scientists believe that billions of years ago this planet could have not only had a thick atmosphere, but was warm enough to support oceans of liquid water....

Moon Gets New Face GRAIL
2013-11-11 08:26:13

[ Watch the Video: Man In The Moon Got His Looks From Asteroids ] redOrbit Staff & Wire Reports - Your Universe Online Scientists have long believed that the moon’s trademark craters were created from the impact of massive asteroids, but new research appearing in the journal Science suggests that smaller planetoids might actually have been responsible for pummeling the lunar surface. The lunar craters were believed to have been created approximately four billion years ago,...

New Evidence Indicates Moon Is 100 Million Years Younger Than Thought
2013-09-24 07:10:10

[ Watch the Video: Moon May Be Much Younger Than Previously Believed ] Lawrence LeBlond for redOrbit.com - Your Universe Online Earth’s closest neighbor, the moon, has been studied intently by astronomers for centuries. In that time, we thought we had discovered nearly everything there is to know about the origins of our natural satellite. However, new research by geochemist Richard Carlson of the Carnegie Institution of Washington has shaken things up a bit. According to Carlson's...

Meteor Impact Crater Found Beneath Iowa Town
2013-07-11 04:39:36

Lee Rannals for redOrbit.com - Your Universe Online A meteor crater from 470-million-years-ago lies buried several hundred feet beneath the town of Decorah, Iowa, according to an airborne geophysical survey reported in EARTH Magazine. Geologists first hypothesized the crater's existence while examining cuttings from water wells drilled near the town. During this examination they discovered evidence of a previously unknown shale deposit that was nearly a perfect circle, roughly 3.4 miles...

Mercury History Masked Volcanic Activity
2013-07-05 11:03:48

Brett Smith for redOrbit.com - Your Universe Online Ever since NASA's Mariner 10 sent back the first images of Mercury, scientists have been fascinated by the planet's unusually smooth surface. According to an analysis of images provided by NASA's Mercury-orbiting MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging), a period of heavy volcanic activity essentially gave the planet a makeover about 4 billion years ago, erasing the first 400 to 500 million years of its...


Latest Impact crater Reference Libraries

4_b77ea6684a9ab0883ad17fdf55ecefdf2
2004-10-19 04:45:41

Saturn's moon Mimas -- Mimas is a moon of Saturn that was discovered in 1789 by William Herschel. Mimas' low density (1.17) indicates that it is composed mostly of water ice with only a small amount of rock. Mimas' most distinctive feature is a colossal impact crater 130 km across, named Herschel after the moon's discoverer. Herschel covers almost 1/3 of the diameter of the entire moon; its walls are approximately 5 km high, parts of its floor measure 10 km deep, and its central peak...

4_a34505fa4e67ac355472742562cbda502
2004-10-19 04:45:40

Jupiter's Moon Callisto -- With a diameter of over 4,800 km (2,985 miles), Callisto is the third largest satellite in the solar system and is almost the size of Mercury. Callisto is the outermost of the Galilean satellites, and orbits beyonds Jupiter's main radiation belts. It has the lowest density of the Galilean satellites (1.86 grams/cubic centimeter). Its interior is probably similar to Ganymede except the inner rocky core is smaller, and this core is surrounded by a large icy...

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