|Earth Happenings Archive|
- Subsidence on the nile (Nature Science Update 7/31)
- "Researchers from the United States believe that the northern part of Egypt's Nile delta region is slowly sinking. The finding has possible implications for 500,000 residents, as well as the future of the Suez canal, one of the world's most important shipping corridors."
- Are we safe from objects in space? (Nature Science Update 7/31)
- "Have you thought of the danger of Earth being hit by an object from space? Maybe you have and been told to ease-off from watching science-fiction films. But such an event has happened in the past, and may happen again. According to current estimates, the risk of people dying from the impact of a 'near Earth object' is comparable with the risk of dying in an air crash, an earthquake or hurricane. "
- Survey: 7 new asteroids could threaten Earth (CNN 7/31)
- "Seven previously unknown asteroids that are close enough and large enough to threaten the Earth have been found by astronomers scanning the heavens for potentially dangerous space rocks."
- An Icy Paradox (ScienceNow 7/31)
- "The thundering collapse of ice from towering glaciers off the Antarctic Peninsula highlights their vulnerability to the warming trend there in recent decades. Does this presage the ultimate fate of Antarctica's major ice shelves, which lie in colder climes farther south? Not according to a report in today's issue of Nature. It suggests that initially, global warming may actually cause these massive ice shelves to thicken." (ScienceNow requires free registration to view report.)
- Neptune's Moonstruck Rings (InScight 7/30)
- "Scientists may have glimpsed a moon being reborn near Neptune. An unusual ring around the planet--a series of thick arcs connected by wispy strands--is in the process of coalescing into a single body less than 10 kilometers across. The new moon would replace an earlier one that may have produced the ring when it was shattered by a passing comet."
- Pathfinder's battery power dwindles (CNN/AP 7/29)
- "For the first time since the July 4 landing on the red planet, engineers at NASA's Jet Propulsion Laboratory began to talk about how to accommodate Pathfinder's dwindling battery capacity."
- Iceland quake is imminent (UPI 7/27)
- "Icelandic officials say the threat of what they call a major, '100-year earthquake' was more than enough justification for the recently concluded 17-nation disaster relief exercise hosted by their nation. "
- Did a Quick Spin Pump Up Evolution? (InScight 7/25)
- Scientists discover that "evolutionary big bang" may have been caused by Earth losing its balance half a billion years ago (CalTech Press Release 7/24)
- Continental shifts may have led to evolution explosion (CNN 7/25)
- "The continents suddenly spun off course some 530 million years ago, perhaps due to a quick shift of Earth's spin axis, geophysicists report in today's Science. The researchers speculate that the terrestrial upheaval--which took just 15 million years--may have set off a contemporaneous evolutionary explosion, in which almost all major types of animals living today burst into life." (Images and Animations from the CalTech report)
- Molecular Eruptions in Water's Weird Cousin (Science Now 7/25)
- "In the cold reaches of interstellar space, most water probably exists in a strange frozen state, called amorphous solid water. As an upcoming report in Physical Review Letters describes, the behavior of this material is bizarre even when it is changing into ordinary ice: It suddenly fractures into tiny crystals, allowing underlying material to erupt, much like a terrestrial volcanic eruption."
- Scientist Discovers Dinosaur Foot (Washington Post/AP 7/24)
- "An Argentine scientist says he's discovered the foot of a 90 million-year-old dinosaur -- a meat-eating predator previously thought never to have made it to the Southern Hemisphere."
- Journey to the center of the Earth -- by computer (CNN 7/24)
- "Michael Wysession is the first person to map a mysterious region of the inner Earth called the 'core-mantle boundary.' The boundary -- a narrow band between the Earth's hot, liquid core and the rocky mantle layer -- lies 2,000 miles beneath the planet's surface, or crust. "
- Ancient skull may help put face on ancestor of apes, humans
- "Researchers have found a skull from a 15-million-year-old monkey that suggests that a still-undiscovered ancestor of both monkeys and people looked different from what many scientists thought."
- 8 years after Bay Area quake,freeway reopens (CNN/AP 7/23)
- "Eight years and $1 billion later, traffic flowed over the Cypress Freeway Wednesday for the first time since a 1989 earthquake collapsed the roadway and killed 42 people."
- Researchers: Global warming will melt Antarctic ice shelves (CNN/AP 7/22)
- "Ice shelves border some 44 percent of Antarctica, covering 580,000 square miles (1.5 million square km). The two biggest are in the Weddell Sea and the Ross Sea. But new computer climate models of global warming trends predict that they are doomed, with significant degradation beginning in the 21st century and the near-total loss of the ice shelves within 500 years."
- Glacial Lake Causes Panic in Nepal (CNN Custom News 7/22)
- "The Tsho-Rolpa glacial lake in the Himalayas has not only caused panic in the flood-prone areas, but also arrested the attention of the whole of Nepal. Studies revealed in mid-June that the glacial lake, situated 4,580-meter high in the Rolwaling Valley about 80 kilometers east of here, has expanded from 1.37 sq.m. to 1.65 sq.m. and might burst this summer."
- Blocks of ice crash down from sky in Brazil (CNN/Reuters 7/22)
- "Two large blocks of ice which crashed in Brazil's Sao Paulo state from clear skies are most likely part of a meteorite, a Brazilian researcher said Tuesday."
- Scientists detect faint atmosphere on Europa (CNN/AP 7/19)
- "The Galileo spacecraft has found indications of a very thin atmosphere on Jupiter's frozen moon Europa, a promising target in the search for extraterrestrial life."
- Pathfinder Returns More Mars Images (Washington Post/AP 7/18)
- Pathfinder sends vibrant, panoramic image of horizon (CNN 7/18)
- "The Mars Pathfinder and its Sojourner rover are operating without a hitch after 14 days on the red planet and have radioed home a new view of a distant peak, NASA reported Friday. The camera aboard the Pathfinder lander sent back a high-resolution image of the northernmost of the so-called Twin Peaks that loom on the horizon in an ancient flood plain called Ares Vallis."
- Dinosaur Skin Impression Found (Washington Post/AP 7/18)
- "A duckbilled dinosaur that died 70 million years ago in what is now New Mexico has left behind the most detailed impressions ever seen of the grooved bumps on a dinosaur's skin, paleontologists say."
- Japan to Build Quake Simulator (Washington Post/AP 7/14)
- "Japan plans to build the world's most advanced earthquake simulation device in hopes of learning how to reduce damage from the real thing. The machine would be powerful enough to closely replicate the effects of a magnitude-7 earthquake like the one that devastated the city of Kobe in 1995."
- A 'golden' anniversary (Washington Post/AP 7/14)
- "Long before Boeing, long before Bill Gates, there was a single day in Seattle when the prospect of unimaginable riches brought the city to a dead stop. On July 17, 1897, the decrepit steamship S.S. Portland arrived from the Yukon carrying 68 tattered Klondike miners, each lugging crates, suitcases or sacks crammed with gold."
- Dinosaur eggshell comes home (Nature Science Updates 7/10)
- California paleontologists roam 'valley of the mastodons' (CNN 7/12)
- "In California's sun-baked desert, teams of workers are reconstructing the huge skeleton of a prehistoric mastodon. The remnants were unearthed and carefully encased in plaster near Hemet, California, as part of a revealing archaeological project."
- One 'marvelous' Martian week (CNN 7/11)
- "One week after Mars Pathfinder dropped onto the surface of Mars and into the public's imagination, the man in charge of turning the mission from concept to reality gave his verdict Friday: 'Marvelous.'" (CNN/NASA Quicktime Movie)
- Comet Origin of Oceans All Wet? (Science Now 7/11)
- "Many planetary scientists have surmised that most of the water on Earth's surface could have originated in comets, which are made largely of ice and have hit Earth in vast numbers over geologic history. But a close look at the water in two recent comets, described at a recent planetary science meeting here, now challenges that conclusion."
- Neandertal DNA (Science Now 7/10)
- DNA study knocks Neanderthals out of human family tree
- "A stunning, first-ever analysis of DNA from a Neandertal bone supports the view that Neandertals were an evolutionary dead end rather than our ancestors and gives a major boost to the field of ancient DNA."
- Scientists call Martian rock 'a real surprise' (CNN 7/9)
- Mars Probe Analyzes Rock (Washington Post/AP 7/9)
- "Hap McSween, a University of Tennessee scientist, told a press conference Tuesday at Cal Tech's Jet Propulsion Laboratory that the rock dubbed Barnacle Bill by scientists had more "free quartz" in it than was expected.
The data from the Sojourner rover's alpha proton X-ray spectrometer suggests that the football-sized rock may be a kind of andesite, the second most common type of lava on Earth."
- Digging for earthquake clues (Reuters/UPI 7/9)
- "San Francisco area scientists are putting around a golf course in search of clues about earthquakes. The golf course lies atop the Hayward fault that has produced sizeable seismic activity over the past 1,000 years, including a 3.0 shaker this morning."
- Pathfinder Finds Clues to Great Flood (Science Now 7/7)
- 'Perfect' day on Mars yields evidence of ancient floods (CNN 7/7)
- "Planetary scientists studying the images relayed home by the Mars Pathfinder are finding signs that a great ancient flood on the Red Planet deposited rocks at the landing site, the Ares Valles region. But not all experts are convinced by the evidence, presented at a press conference today."
- For the more recent information on Mars see CNN's Destination Mars page with a number of images, news reports, and list of NASA mirror sites for accessing the latest images on the web.
- Mars Pathfinder transmits dramatic color images (CNN 7/4)
- "The Mars Pathfinder space probe sent back the first panoramic color images of the desolate, rock-strewn surface of Mars Friday evening. The first red-tinged views of the planet from Pathfinder, perched amidst the rocky Martian floor, were released by NASA about 9:35 p.m. EDT (0135 GMT) -- less than nine hours after the spacecraft made a landing that one NASA scientist described as 'way beyond our expectations.'"
- Ancient mammoth's remains found in Phoenix suburb (CNN/AP 7/4)
- " Construction crews have come across the remains of a 10,000-year-old woolly mammoth, and a geologist said charcoal found at the site may mean humans were there that long ago."
Dust Storm Developing on Mars(Washington Post/AP 7/1)
- "A dust storm is brewing on Mars, but poses no immediate threat to the Mars
Pathfinder spacecraft, scheduled to set down on the red planet Friday."
Fly-By Nets Asteroid Close-Ups(Washington Post/AP 7/1)
- "Close-up photos of the asteroid Mathilde suggest it is a leftover crumb from the vast cloud of space rocks that orbited the sun billions of years and came together to form the planets."
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