Mysterious rock appears on Mars out of nowhere
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A mysterious rock which appeared in front of the Opportunity rover is “like nothing we’ve ever seen before”, according to Mars exploration scientists at Nasa.
Experts said they were “completely confused” by both the origins and makeup of the object, which is currently being investigated by Opportunity’s various measuring instruments.
Astronomers noticed the new rock had “appeared” without any explanation on an outcrop which had been empty just days earlier. The rover has been stuck photographing the same region of Mars for more than a month due to bad weather, with scientists at the Jet Propulsion Laboratory (JPL) in California monitoring the images it sends.
Nasa issued a Mars status report entitled “encountering a surprise”, and lead Mars Exploration rover scientist Steve Squyres told a JPL event it seems the planet literally “keeps throwing new things at us”.
He said the images, from 12 Martian days apart, were from no more than a couple of weeks ago. “We saw this rock just sitting here. It looks white around the edge in the middle and there’s a low spot in the centre that’s dark red – it looks like a jelly doughnut.
“And it appeared, just plain appeared at that spot – and we haven’t ever driven over that spot.”
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Write an equation that represents the following function. The number of animal species, N, of a certain body length, l, is inversely proportional to the square of l.
Use the lower-case letter k for any constant of proportionality in your answer.
>Why do math majors make understand what they ask you so difficult?
English majors, at least, understand the idea of making complicated subjects simple, at least sometimes.
>basically i need help
The Astronomy Picture of the Day
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Despina, Moon of Neptune
Despina is a tiny moon of Neptune. A mere 148 kilometers across, diminutive Despina was discovered in 1989, in images from the Voyager 2 spacecraft taken during its encounter with the solar system's most distant gas giant planet. But looking through the Voyager 2 data 20 years later, amateur image processor and philosophy professor Ted Stryk discovered something no one had recognized before -- images that show the shadow of Despina in transit across Neptune's blue cloud tops. His composite view of Despina and its shadow is composed of four archival frames taken on August 24, 1989, separated by nine minutes. Despina itself has been artificially brightened to make it easier to see. In ancient Greek mythology, Despina is a daughter of Poseidon, the Roman god Neptune.
Tomorrow's picture: M83 star streams