GRAA NEWSLETTER
P.O. Box 1184, Greenbelt, MD 20768-1184


 

October 2016 http://graa.gsfc.nasa.gov 32nd Year of Publication

IMPORTANT DATES

October 11 Mark your calendar for the GRAA Luncheon at 11:30 a.m. at the Greenbelt American Legion Post #136 at 6900 Greenbelt Road. Reservations are required for our venue, so please contact Alberta Moran on her cell phone at 301-910-0177 or via email at mdspacebr@aol.com not later than noon on Friday, October 7th. Our featured speaker will be Dr. Lori Glaze, Deputy Director of Goddard’s Solar System Exploration Division and Principal Investigator of the Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging (DAVINCI) mission. Her presentation is entitled “Venus, the Forgotten Planet.”
November 8 Mark your calendar for the GRAA Luncheon at 11:30 a.m. Dr. Alexander Marshak, who is an Atmospheric Scientist in the Climate and Radiation Laboratory of the Sciences and Exploration Directorate, will be our featured speaker. As Deputy Project Scientist for the Deep Space Climate Observatory (DSCOVR) satellite mission, his presentation topic will be “Earth Observations from the First Lagrangian (L1) Point.”

COMMENTS FROM TONY COMBERIATE, GRAA PRESIDENT: Our September luncheon speaker was Dr. James Garvin, Goddard’s Chief Scientist. His presentation, entitled “The Engineering of Science at NASA’s Goddard Space Flight Center,” discussed where we are and where we are going. Goddard has flown more missions with more instruments than any other NASA center and is continuing to do so. He recently submitted a program plan for 21 new creative and innovative investigations for the next year. He views the James Webb Space Telescope (JWST) as “an Apollo mission without astronauts, which does Astrophysics.” After it is launched in 2018, it will be the single largest astronomical tool built by humanity in space, with a light-gathering power 25 times greater than its predecessors. The discoveries from JWST, which will only be made possible by the incredible engineering capability of Goddard, will revolutionize our understanding of the universe. We will be able to detect and analyze atmospheres around Jupiter-size planets 40 light years away. After describing some of Goddard’s recent successes, Jim focused on plans to visits planets and moons in our solar system. The last NASA mission to send a probe to the surface of Venus was in 1978. Goddard’s proposal for the DAVINCI mission would penetrate the thick atmosphere of Venus with a chemistry laboratory to help understand where that atmosphere came from and how it evolved. He described the advances in laser technology, which have provided topographic maps of the surface of Venus, our moon, and other bodies in the solar system and which will greatly aid future manned and unmanned missions. Jim suggests that our first human visits to Mars may involve using an orbiting telepresence like we now do on the sea floor, before we land people and huge amounts of supporting equipment.

A major focus of Goddard future planning is discovering the presence or one time presence of large amounts of water on other bodies such as Mars, Ceres, and Europa. It is thought that 40% of Mars was once an ocean. These other ocean worlds in our solar system could harbor primitive microbial life. Goddard is also studying new advances in propulsion, such as Solar Electric Propulsion, which should enable us to return to Mars with more power so we could then use electromagnetic sensing to map the subsurface ice on Mars. Then, using a molecular analyzer, we would search for microbes, resulting from these ocean waters communicating with the surface and leaving organic residues. Dr. Garvin’s closing thought was that “it is not our job to predict the future, but rather to enable it.”

INVITATION TO ATTEND GRAA LUNCHEON: Five retirees (Steve Benner, Diane Booth, Jim Byrnes, Maria So and Warren Connley) attended the GRAA Luncheon for the first time. We cordially invite other recent retirees who have not yet attended a luncheon to join us and experience it on GRAA’s dime.

TREASURER’S REPORT: Treasurer Jackie Gasch received tax-deductible contributions from the following members: John Degnan (in memory of Robert Coates), Charles Jackman, Joseph H. Rothenberg, and Thomas Underwood.

THOUGHT FOR OCTOBER: Studies indicate that we are apparently getting too old when we find out we have too much room in our houses and not enough in our medicine cabinets.

REMEMBERING OUR FORMER COLLEAGUES:

FROM THE GODDARD ARCHIVES – IT HAPPENED IN OCTOBER: The Solar Terrestrial Relations Observatory (STEREO) satellites were launched from Cape Canaveral, FL, on a Delta-II rocket on October 25, 2006. STEREO employed two nearly identical space-based observatories (STEREO-A and STEREO-B) – one ahead of Earth, the other trailing behind – to provide the first-ever stereoscopic measurements to study the Sun and the nature of its coronal mass ejections, which are massive bursts of solar wind, solar plasma, and magnetic field that are sometimes ejected into space. Such ejections can disrupt Earth’s communications, airlines, power grids, and satellites. More accurate forecasting of the ejections has the potential to provide greater warning to operators of such services. On August 21st, contact was thankfully re-established with STEREO-B after communications were lost on October 1, 2014. Kudos are warranted and extended by GRAA for the dedicated efforts made by the STEREO team make re-contact.