JPL
Asteroid to miss Earth by less than 20,000 miles next month
Asteroid 2012 DA14 is about 40 meters (131 ft) in size, has a mass of 130,000 tons, is traveling relative to the Earth at a speed of some 6.3 km/s (14,100 mph) ... and will miss us by less than 32,000 km (20,000 miles) on February 15. If it did hit the Earth, the result would be a huge explosion yielding about 2.5 megatons, but Asteroid 2012 DA14 will not hit our planet in 2013, and probably never will. Despite the lack of a sensational scenario, this close call still warrants our attention – it will allow astronomers to learn a good deal about asteroids, and represents one of the few chances for ordinary folks to see a asteroid pass really close to Earth. Read More
NASA’s Jet Propulsion Laboratory has released a video transmitted by the GRAIL lunar orbiters during their final days. The dramatic footage was taken on December 14, 2012 as part of a final systems check before the twin spacecraft shut down their instruments in preparation for a controlled impact into a lunar mountain. Read More
NASA’s Curiosity Mars rover ended its holiday break this week and resumed its travels across the Red Planet. The unmanned nuclear-powered explorer drove about 10 feet (3 m) northwestward to a sinuous rock feature called ”Snake River.” This brings its total driving distance since touching down at Bradbury Landing on August 6 to 2,303 feet (702 m). As part of its next phase of exploration, Curiosity tested its motorized brush for the first time and is seeking a target for its sampling drill. Read More
NASA’s two Gravity Recovery and Interior Laboratory (GRAIL) spacecraft have struck the Moon in a controlled impact. At 5:28:46 EST (222846 GMT) Ebb, the first spacecraft, struck a mountain near the lunar North Pole. The second, Flow, hit about 20 seconds later. Because the impact occurred during a new moon, no images were available of the impact, though NASA was able to determine the time of the event by monitoring the moment that telemetry ended. The Jet Propulsion Laboratory in Pasadena, California provided live television and online commentary. Read More
NASA’s Curiosity Mars rover got a bit of help from the European Space Agency (ESA) in October. Beaming data back to Earth from the surface of the Red Planet is often tricky, and Curiosity regularly uses satellites to act as relays when a proper line of sight isn't available. On October 6, the ESA probe Mars Express took up the slack by relaying data and images for the rover as part of an ESA-NASA support agreement. Read More
NASA’s Curiosity Mars rover is now sending back weather reports and radiation measurements. Using the Rover Environmental Monitoring Station (REMS) instrument built by Spain’s Centro de Astrobiologia (CAB), the nuclear-powered robot has been taking measurements of atmospheric pressure, temperature, wind speed and other factors to better understand the Martian environment in hopes of finding out whether life could still exist on the Red Planet. Read More
NASA’s Curiosity Mars rover has completed its first soil analysis of the Red Planet. The unmanned explorer used an advanced, miniaturized X-ray diffraction instrument that is part of the Chemistry and Mineralogy instrument (CheMin) of its internal laboratory. The soil, collected at a site designated “Rocknest” in Gale Crater, reveals that Martian soil is a weathered volcanic type similar to soils found in the Hawaiian Islands. Read More
Curiosity rover takes its first Martian soil samples
NASA’s Curiosity Mars rover took its first soil sample last week. The unmanned explorer used its robotic arm to scoop up a bit of the Martian surface, which it then sieved. A baby-Aspirin sized portion was subsequently deposited into its internal laboratory for analysis by the Chemistry and Mineralogy (CheMin) instrument, to determine what minerals it contains. Read More
The object that NASA’s Curiosity Mars rover found on Sunday is probably a piece of plastic that fell off the unmanned exploration vehicle. According to mission control at the Jet Propulsion Laboratory (JPL) at Pasadena, California, the object is “benign” and poses no likely threat to continuing the mission. However, the JPL rover team has not yet definitely identified the object and will continue investigating for another day. Read More
Scooping up a handful of dirt may seem simple, but for a robot operating on another planet, it’s a major operation. NASA’s Curiosity Mars rover is making itself ready to collect its first soil sample at an area called “Rocknest.” The preparations involve testing the nuclear-powered rover’s motorized scoop and cleaning out its Chemistry and Mineralogy (ChemMin) and Sample Analysis at Mars (SAM) laboratories of any terrestrial contaminants before receiving soil samples. Read More
