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An ambitious mission to uncover the past of the Solar System
A new space rock has been found that devotedly travels around with Mars as it orbits the Sun, bringing the total number of such 'groupies' to four. But astronomers say it was Mars - not its tiny companions - that originally insinuated itself into the rock group billions of years ago.
The asteroid, called 2007 NS2, was discovered by astronomers at the La Sagra Observatory in southern Spain on 16 July. Based on its brightness, it is estimated to be about 1 kilometre across.
The asteroid, called 2007 NS2, was discovered by astronomers at the La Sagra Observatory in southern Spain on 16 July. Based on its brightness, it is estimated to be about 1 kilometre across.
The twin rovers on Mars are in good shape today despite widespread dust storms that worsened last week and threatened to cut off solar power to the robotic explorers.
Steve Squyres of Cornell University, the lead scientist for the Mars Exploration Rovers (MER) project, said that both Spirit and Opportunity are in "excellent shape" based on a radio transmission received this morning.
"Both came through the weekend beautifully," Squyres said in a telephone interview. "They were both power positive over the weekend, meaning they were generating more power than they were consuming."
The amount of sunlight penetrating the dust-choked martian atmosphere has increased slightly in recent days, and the batteries of both rovers are fully charged, said Michael Meyer, lead scientist for the Mars Explorations Program at NASA Headquarters in Washington, D.C.
Astronomers measure atmospheric opacity in units of "tau." The lower the tau value, the clearer the sky.
Steve Squyres of Cornell University, the lead scientist for the Mars Exploration Rovers (MER) project, said that both Spirit and Opportunity are in "excellent shape" based on a radio transmission received this morning.
"Both came through the weekend beautifully," Squyres said in a telephone interview. "They were both power positive over the weekend, meaning they were generating more power than they were consuming."
The amount of sunlight penetrating the dust-choked martian atmosphere has increased slightly in recent days, and the batteries of both rovers are fully charged, said Michael Meyer, lead scientist for the Mars Explorations Program at NASA Headquarters in Washington, D.C.
Astronomers measure atmospheric opacity in units of "tau." The lower the tau value, the clearer the sky.
It's sleek. It's chic. It's very, very, very tight. All the better to show an astronaut's gravity-defying figure back on earth.
Introducing the BioSuit: a prototype spacesuit recently completed by scientists at the Massachusetts Institute of Technology.
When the white high-tech design is finalized in a few years, it will be the first new look for astronauts in more than four decades, replacing the lumpy, awkward 300-pound outfit with something worthy of a super hero.
"The current spacesuit dates back to Apollo," said Robert Cassanova, director of the NASA Institute for Advanced Concepts, which partially funded the work. "It's a gas-pressurized bag that provides the atmospheric pressure humans need to survive, but they're heavy and bulky." The Michelin-man-like outfit is also exhausting -- about 70 percent of the energy astronauts expend is spent wearing the suit.
Introducing the BioSuit: a prototype spacesuit recently completed by scientists at the Massachusetts Institute of Technology.
When the white high-tech design is finalized in a few years, it will be the first new look for astronauts in more than four decades, replacing the lumpy, awkward 300-pound outfit with something worthy of a super hero.
"The current spacesuit dates back to Apollo," said Robert Cassanova, director of the NASA Institute for Advanced Concepts, which partially funded the work. "It's a gas-pressurized bag that provides the atmospheric pressure humans need to survive, but they're heavy and bulky." The Michelin-man-like outfit is also exhausting -- about 70 percent of the energy astronauts expend is spent wearing the suit.
A faint star in the Ophiuchus constellation drew about 30 astronomers from around the globe Friday to Columbia Basin College in Pasco.
A key US space agency (Nasa) satellite important for detecting hurricanes and providing other climate data will go silent in the next few years, and missions to replace it have been cancelled or delayed.
PASADENA, Calif. - Mission scientists worry that nearly a month's worth of storms could permanently damage or disable the Mars rovers exploring the Red Planet.
UC Berkeley scientists, digging deep into a remote New Mexico hillside, have discovered a trove of fossil bones that they say is evidence that dinosaurs and their early relatives lived side by side for tens of millions of years before the relatives slowly died off and left the dinosaurs to dominate the ancient world.
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| ©University of California Museum of Paleontology |
| Dinosaur precursors (from bottom) Dromomeron romeri and a silesaurus-like animal, and dinosaurs Chindesaurus bryansmalli and a coelophysoid theropod. |
AKAMAS, Cyprus - Archaeologists excavating the seabed off Cyprus have discovered the tools of ancient mariners, which they believe were used by foragers more than 10,000 years ago - before the island had permanent settlements.
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| ©AP |
| A diver searches the Aspros area for ancient artifacts off the western coast of Cyprus |
Thailand will have a close encounter with an asteroid expected to move closer to the Earth than the moon in the next 29 years, according to a prominent astronomer Worawit Tanwutthibundit. The asteroid, named 99942 Apophis, will come into close orbit with the Earth 22 years from now and it will come by again, even closer, seven years after that.
This has sparked fears over the possibility that it could collide with the Earth.
This has sparked fears over the possibility that it could collide with the Earth.
