Written by Elizabeth Landau
Pasadena, CA – Ceres is covered in countless small, young craters, but none are larger than 175 miles (280 kilometers) in diameter. To scientists, this is a huge mystery, given that the dwarf planet must have been hit by numerous large asteroids during its 4.5 billion-year lifetime. Where did all the large craters go?
A new study in the journal Nature Communications explores this puzzle of Ceres’ missing large craters, using data from NASA’s Dawn spacecraft, which has been orbiting Ceres since March 2015.
Written by Elizabeth Zubritsky
Greenbelt, MD – Scientists with NASA’s Dawn mission have identified permanently shadowed regions on the dwarf planet Ceres. Most of these areas likely have been cold enough to trap water ice for a billion years, suggesting that ice deposits could exist there now.
“The conditions on Ceres are right for accumulating deposits of water ice,” said Norbert Schorghofer, a Dawn guest investigator at the University of Hawaii at Manoa. “Ceres has just enough mass to hold on to water molecules, and the permanently shadowed regions we identified are extremely cold — colder than most that exist on the moon or Mercury.”
Written by Elizabeth Landau
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, between Mars and Jupiter. On March 6th, 2015, Dawn also became the first spacecraft to enter orbit around a dwarf planet.
Written by Alan Buis
Pasadena, CA – Why has the sea ice cover surrounding Antarctica been increasing slightly, in sharp contrast to the drastic loss of sea ice occurring in the Arctic Ocean? A new NASA-led study finds the geology of Antarctica and the Southern Ocean are responsible.
A NASA/NOAA/university team led by Son Nghiem of NASA’s Jet Propulsion Laboratory, Pasadena, California, used satellite radar, sea surface temperature, land form and bathymetry (ocean depth) data to study the physical processes and properties affecting Antarctic sea ice.
NASA’s Jet Propulsion Laboratory
Pasadena, CA – New Orleans and surrounding areas continue to sink at highly variable rates due to a combination of natural geologic and human-induced processes, finds a new NASA/university study using NASA airborne radar.
The observed rates of sinking, otherwise known as subsidence, were generally consistent with, but somewhat higher than, previous studies conducted using different radar data.
The research was the most spatially-extensive, high-resolution study to date of regional subsidence in and around New Orleans, measuring its effects and examining its causes.
Nashville, TN – In the 7th round of the 2016 NFL Draft, the Tennessee Titans selected UCLA Bruins linebacker Aaron Wallace with the 222nd overall pick Saturday.
The 6’3″ 240 pound Wallace ran the 40 yard dash in 4.57 seconds at the NFL Combine. He had 25 reps on the bench press (225 pounds), a 36″ vertical leap and ran the short shuttle in 4.27 seconds.
Written by Carol Rasmussen
Pasadena, CA – A NASA-led team of scientists has developed the first-ever method for detecting the presence of different types of underground forest fungi from space, information that may help researchers predict how climate change will alter forest habitats.
Hidden beneath every forest is a network of fungi living in mutually beneficial relationships with the trees. Called mycorrhizal fungi, these organisms spread underground for miles, scavenging for nutrients that they trade with trees for sugars the trees make during photosynthesis. “Nearly all tree species associate with only one of two types of mycorrhizal fungi,” explained coauthor Richard Phillips of Indiana University, Bloomington.
NASA’s Dawn Spacecraft provides high resolution details of Bright Spots and complex features on Dwarf Planet Ceres
Written by Elizabeth Landau
Pasadena, CA – Scientists from NASA’s Dawn mission unveiled new images from the spacecraft’s lowest orbit at Ceres, including highly anticipated views of Occator Crater, at the 47th annual Lunar and Planetary Science Conference in The Woodlands, Texas, on Tuesday.
Occator Crater, measuring 57 miles (92 kilometers) across and 2.5 miles (4 kilometers) deep, contains the brightest area on Ceres, the dwarf planet that Dawn has explored since early 2015. The latest images, taken from 240 miles (385 kilometers) above the surface of Ceres, reveal a dome in a smooth-walled pit in the bright center of the crater.
#7 Seed Tennessee Lady Vols (21-13) vs. #3 Seed Ohio State Buckeyes (26-7)
Friday, March 25th, 2016 | 8:30pm CT/9:30pm ET
Knoxville, TN – The No. 7 seed Lady Vols (21-13) will take on No. 3 seed Ohio State (26-7) in the Sweet 16 of the NCAA Tournament in Sioux Falls, South Dakota on Friday at 8:30pm CT/ 9:30pm ET on ESPN2.
The winner will advance to Sunday’s Sioux Falls Regional final and will play the winner of the other semifinal game featuring No. 1 seed and #3/2-ranked South Carolina (33-1) vs. No. 4 seed and #14/15-ranked Syracuse (27-7).
Tennessee advanced to the semifinal round on Sunday night by upsetting No. 2 seed and #11/11 Arizona State, 75-64, in the second round on the Sun Devils’ home court in Tempe. UT had beaten No. 10 seed Green Bay in the first round last Friday, 59-53.
#7 Tennessee Lady Vols (20-13) vs. #2 Arizona State (26-6)
Sunday, March 20th, 2016 | 9:00pm ET/8:00pm CT
Knoxville, TN – The No. 7 seed Lady Vols (20-13) will put their undefeated second round record on the line against No. 2 seed Arizona State (26-6) in the second round of the NCAA Tournament in Tempe, Arizona on Sunday at 6:00pm PT/ 9:00pm ET/ 8:00pm CT on ESPN.
The winner will advance to the Sweet 16 and will play a yet-to-be-determined opponent on March 25th in Sioux Falls. Tennessee advanced to the second round on Friday afternoon by defeating No. 10 seed Green Bay, 59-53, coming from eight down in the first half.
Arizona State, meanwhile, romped to a 74-52 win over No. 15 seed New Mexico State to move along to Sunday.
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