NASA’s Earth Observatory has an interesting view of a sand dune breach and swirling sediment off the coast. Be sure to check out the slider to compare the before and after images. http://earthobservatory.nasa.gov/IOTD/view.php?id=80523
Archive for the ‘Earth’ Category
The meteor that exploded over California last weekend rained rubble down on the site where gold was discovered in 1848 and where scores of modern-day treasure seekers and clue-seeking researchers are expected to descend this weekend in search of fragments.
Earth may be going steady with the Moon, but it has a bit of a wanderer’s relationship with some other nearby objects. A study by an international trio of scientists suggests that, at any given time, there is at least one meter-sized mini asteroid temporarily orbiting our planet.
Imagine that we’ve detected an asteroid barrelling toward Earth. It’s too late to blow it up, or nudge it off course, so the most effective form of asteroid deflection method is about to come into play: getting hit. Although death and destruction isn’t a particularly desirable outcome, doing nothing may be the only plan we have left.
Since 2006 ESA has been making satellite images of Earth available to anyone wanting to explore the planet in near-real time. ESA has now added nearly 13 000 radar images to the service, bringing the number of viewing possibilities to about 58 000.
Since the dawn of the space age, humanity has sent 16 robotic emissaries to fly by some of the solar system’s most intriguing and nomadic occupants — comets and asteroids. The data and imagery collected on these deep-space missions of exploration have helped redefine our understanding of how Earth and our part of the galaxy came to be. But this fall, Mother Nature is giving scientists around the world a close-up view of one of her good-sized space rocks — no rocket required.
Exactly who uses Landsat satellite imagery and what value do they derive from the information?
In the first study of its kind, U.S. Geological Survey investigators surveyed a broad cross section of Landsat users to answer such questions.
An asteroid as strong as 15 atomic bombs whizzed past earth last night at just ten times the distance of the moon.
Astronomers first spotted the cigar-shaped rock spinning through space on Monday evening and tracked it.
A meteorite found in Antarctica could lend weight to the argument that life on Earth might have been kick-started from space, scientists are claiming.
Social networking has never before made me feel quite so vulnerable to space rocks!
A few days ago on Feb. 9th, I received a tweet advising me that asteroid 2011 CA7 had just shot between the Earth and moon at a distance of only 0.3 lunar distances — or 115,300km!
At 4:33 a.m. on a recent Friday, Timothy Spahr was startled awake by a beep from his cellphone: A text message alerted him that a rocky object was hurtling toward Earth. He told his wife it was “some asteroid thing’’ and went to check his computer.
Whether you fear an asteroid hitting the earth in the next few decades depends on how much faith you have in the odds.
The latest end-of-the-world space oddity concerns Apophis, an asteroid larger than two football fields.
An early warning system that could give Earth a week’s notice or more before a space rock destroyed a city would cost only $1 million per observatory, its leading proponent suggests.
You won’t get a literal jolt from looking at Sunday’s full moon—but you might if you were standing on it. When the moon is full, it develops a strong electric field near the surface as it swings through Earth’s magnetic “tail,” according to new observations from a Japanese probe.
Imagine looking out your window at night and seeing the lights of Paris blaze bright, while fog creeps toward London and the northern lights dance on the horizon.
Astronomer reveals plans for a network of telescopes that could give up to three weeks’ warning of a city-destroying impact.
Purdue University on Wednesday (Nov. 3) unveiled ”Impact: Earth!” a new website that allows anyone to calculate the potential damage a comet or asteroid would cause if it hit the Earth.
It is unlikely that anytime soon an asteroid or comet will impact Earth and cause devastating or large-scale damage. But we will probably soon find some object that is deemed potentially hazardous, one that might pose a future danger to Earth.
A large asteroid smashing into the Pacific ocean would devastate the ozone layer for years afterwards, report planetary scientists.