NASA's Dawn spacecraft finishes objectives at Dwarf Planet Ceres, completes mission
July 3, 2016 | Written by Elizabeth Landau NASA’s Jet Propulsion Laboratory Pasadena, CA – On June 30th, just in time for the global celebration known as Asteroid Day, NASA’s Dawn spacecraft completes its primary mission. The mission exceeded all expectations originally set for its exploration of protoplanet Vesta and dwarf planet Ceres. The historic mission is the first to orbit two extraterrestrial solar system targets, and the first to orbit any object in the main asteroid belt, betw..>> view originalAntarctic ozone hole believed to be shrinking
HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Scientists studying climate change in Antarctica reported this week that the hole in the protected ozone layer of the earth’s atmosphere has shrunk. The discovery of the hole in the mid-1980s led to a worldwide facing out of ozone-depleting chemicals known as chlorofluorocarbons, which had been used in products ranging from hairspray to air conditioners. Joining me now from Denver to discuss how that policy has worked and how the hole is healing..>> view originalJuno Spacecraft's July 4 Jupiter Arrival: What to Expect
This artist's illustration shows NASA's Juno spacecraft orbiting Jupiter. Credit: NASA/JPL-Caltech NASA's Juno spacecraft is scheduled to enter into orbit around Jupiter Monday night (July 4), ending its nearly five-year trek to the solar system's biggest planet. The key event Monday is a 35-minute engine burn at 11:18 p.m. EDT (0318 GMT on Tuesday), which is designed to slow Juno down enough to be captured by Jupiter's powerful gravity. If something goes seriously wrong with this ..>> view originalAre pea plants better decision makers than humans?
Plants may just be smarter than you think, according to a new study by an international team of researchers, published in Current Biology this week.By studying the decisions plants made when presented in environments with different nutrient levels, plants showed a remarkable ability to take calculated risks in order to secure the maximum amount of nutrients."To our knowledge, this is the first demonstration of an adaptive response to risk in an organism without a nervous system," said Oxford Un..>> view originalIs Alaska's Pavlof Volcano Ready To Blow Its Top?
Pavlof Volcano in Alaska is showing signs it could erupt soon. How real is the danger to surrounding communities? ( AVO | Royce Snapp ) Pavlof Volcano in Alaska may be in danger of erupting, as seismic activity has recently increased in the region. A steady plume of steam was seen emanating from the mountain, causing state authorities to raise the alert level for the area from normal to advisory status, or yellow alert. Mount Pavlof last saw an eruption in the middle of May 201..>> view originalSkywatch: Jupiter shines bright before its date with Juno
On this star-spangled holiday weekend, the western sky gives ample proof in the night that the planetary king Jupiter is still there. Just after sundown this evening, find Jupiter high in the west-southwestern heavens. You can easily see it with your naked eye, bright at -1.9 magnitude. Enjoy that view, since the large planet welcomes the NASA spacecraft Juno tomorrow night (July 4) in the midst of fireworks here. Jupiter loiters in the constellation Leo, near the back legs of its lion shape. I..>> view originalAquatic Invasive Species Awareness Week includes outreach
LANSING, Mich. (AP) — Michigan officials are reaching out to boaters across the state as part of Aquatic Invasive Species Awareness Week. The week begins Sunday and runs through July 9. Events are planned at more than 50 boat launches as part of efforts to curb non-native aquatic plants and animals. Officials note that invasive species can disrupt the natural ecosystem, tourism and the economy. The week is highlighted by the third-annual AIS Landing Blitz. The Michigan Department of Environment..>> view originalNew photos, video show lava spreading on coastal plain - Honolulu Star
A look into one of several skylights on the lava tube. The brightest area is the open lava stream. USGS / HAWAIIAN VOLCANO OBSERVATORY A section of the channelized aa lava, with what appears. USGS / HAWAIIAN VOLCANO OBSERVATORY.>> view original
Sunday, July 3, 2016
NASA's Dawn spacecraft finishes objectives at Dwarf Planet Ceres, completes mission and other top stories.
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