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Topic: Indian Ocean
At roughly 10 to 20 feet (3 to 6 meters) across, asteroid 2020 QG is very small by asteroid standards: If it had actually been on an impact trajectory, it would likely have become a fireball as it broke up in Earth’s atmosphere, which happens several times a year. ![]() This illustration shows asteroid 2020 QG’s trajectory bending during its close approach to Earth. The asteroid is the closest known nonimpacting asteroid ever detected. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA excited about Apophis Asteroid passing by Earth in 2029
But it won’t be a satellite or an airplane – it will be a 1,100-foot-wide (340-meter-wide) near-Earth asteroid called 99942 Apophis that will cruise harmlessly by Earth, about 19,000 miles (31,000 kilometers) above the surface. That’s within the distance that some of our spacecraft that orbit Earth. The international asteroid research community couldn’t be more excited. ![]() This illustration shows the distance between the Apophis asteroid and Earth at the time of the asteroid’s closest approach. The blue dots are the many man-made satellites that orbit our planet, and the pink represents the International Space Station. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA reports Cygnus Cargo Craft brings Research, Supplies to International Space StationNASA Headquarters
Cygnus will remain at the space station until July 23rd, when the spacecraft will depart the station, deploy NanoRacks customer CubeSats, then have an extended mission of nine months before it will dispose of several tons of trash during a fiery reentry into Earth’s atmosphere. ![]() International Space Station Configuration. Five spaceships are docked at the space station including Northrop Grumman’s Cygnus space freighter and Russia’s Progress 71 and 72 resupply ships and the Soyuz MS-11 and MS-12 crew ships. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA reports small Asteroid burns up over Southern Africa, SaturdayNASA Headquarters
Because it was very faint, the asteroid was estimated to be only about 6 feet (2 meters) across, which is small enough that it was expected to safely disintegrate in Earth’s atmosphere. Saturday’s asteroid was first discovered by the NASA-funded Catalina Sky Survey, located near Tucson and operated by the University of Arizona. «Read the rest of this article» Sections: Technology | No Comments
NASA reports new study sheds light on slowdown of Global WarmingWritten by Alan Buis
The phenomenon was referred to by some as the “global warming hiatus.” Global average surface temperature, measured by satellites and direct observations, is considered a key indicator of climate change. ![]() A new multi-institutional study of the latest research into the temporary slowdown in the global average surface temperature increase seen between 1998 and 2013 concludes it represented a redistribution of heat/energy within the oceans. (Flickr user Brian Richardson, CC by 2.0) «Read the rest of this article» Sections: Technology | No Comments
NASA study reveals Oceans Temperature Rise SlowedWritten by Alan Buis
Researchers Veronica Nieves, Josh Willis and Bill Patzert of NASA’s Jet Propulsion Laboratory, Pasadena, California, found a specific layer of the Indian and Pacific oceans between 300 and 1,000 feet (100 and 300 meters) below the surface has been accumulating more heat than previously recognized. ![]() An Argo float, foreground. The new study included direct measurements of ocean temperatures from the global array of 3,500 Argo floats and other ocean sensors. (Argo program, Germany/Ifremer) «Read the rest of this article» Sections: Technology | No Comments
Tennessee Department of Health urges Travelers to Protect Themselves from MosquitoesChikungunya Virus Disease Spread by Bites
The first confirmed case of chikungunya virus disease in Tennessee occurred in 2014; since then 42 additional cases have been documented, all involving travel outside the state. «Read the rest of this article» Sections: News | No Comments
Tennessee Department of Health is raising Awareness about Chikungunya
Some of the recent travelers from Tennessee now have symptoms of the illness. «Read the rest of this article» Sections: News | No Comments
NASA reports Jupiter’s moon Europa once spun off kilter
Europa’s tilt could influence calculations of how much of the moon’s history is recorded in its frozen shell, how much heat is generated by tides in its ocean, and even how long the ocean has been liquid. ![]() This view of Jupiter’s moon Europa features several regional-resolution mosaics overlaid on a lower resolution global view for context. The regional views were obtained during several different flybys of the moon by NASA’s Galileo mission, and they stretch from high northern to high southern latitudes. Prominent here are the long, arcuate (or arc-shaped) and linear markings called lineae (Latin for strings or threads). (NASA/JPL-Caltech/University of Arizona ) «Read the rest of this article» Sections: Technology | No Comments
Europe Hammered by Winter, Is North America Next?Written by Dauna Coulter
Then, out of the blue, Europe got clobbered: Over the past two weeks, temperatures in Eastern Europe have nose-dived to -30 degrees Celsius (-22 degrees Fahrenheit). Blizzards and the bone-chilling cold have resulted in the deaths of over 550 people so far, with rooftop-high snow drifts trapping tens of thousands of villagers in their homes and cutting off access to entire towns. It has even snowed as far south as North Africa. ![]() This map shows temperature anomalies for Europe and western Russia from January 25th to February 1st, 2012, compared to temperatures for the same dates from 2001 to 2011. The anomalies are based on land surface temperatures observed by the MODIS instrument on NASA’s Terra satellite. «Read the rest of this article» Sections: News | No Comments
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