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Featured Content

CloudSat and CALIPSO Celebrate Ten Years of Observing Clouds and Aerosols

In the July-August issue of The Earth Observer, we focus particular attention on two A-Train missions: CloudSat and CALIPSO. Both missions celebrated the tenth anniversary of their co-manifested launch on April 28. Like many of NASA’s Earth-observing satellites, CloudSat and CALIPSO have long exceeded their prime mission lifetimes and are in extended operations. While they have each had to overcome technical challenges over the past ten years, both missions continue to collect unique scientific data that improve our understanding of the roles clouds and aerosols play in Earth’s climate and weather. 

LIS on ISS: Expanded Global Coverage and Enhanced Applications

Lightning is intimately tied to thunderstorm microphysics and dynamics and it can be used to remotely probe the developmental state, severity, and evolution of thunderstorms and thunderstorm complexes, and can also serve as a valuable indicator for monitoring long-term climate change. To support these useful measurements, NASA’s Marshall Space Flight Center and other science, academic, and commercial partners pioneered the observing technology that has made global-scale lightning detection from space a reality. On page 4 of the May-June issue of The Earth Observer, we provide an overview of NASA’s LIS mission.

A-Train Symposium, April 18-21, 2017

Registration is now open for the 3rd International A-Train Symposium, to be held in Pasadena, California, April 18-21, 2017. For over a decade, the A-Train Constellation has successfully collected a uniquely comprehensive environmental dataset. The symposium will be an opportunity to learn and exchange information about A-Train scientific breakthroughs and to highlight how Earth science has benefitted from the long, continuous, multi-sensor dataset. Please visit for more information.

NASA Science Program Support Office 2016 Annual Report

The Science Program Support Office (SPSO) supported 25 domestic and international science conferences and public events in FY2016. The SPSO strives to provide an inspiring and interactive venue for every event during the year, using a unique storytelling approach that allows a variety of audiences worldwide to connect with NASA Science. The 2016 Annual Report provides a broad overview of these activities, along with details about new Hyperwall stories, publications, social media, key partnerships, and more!

Orchestrating NASA’s Fleet of Earth Observing Satellites

NASA’s current satellite fleet includes 20 Earth-observing missions. While each satellite performs independent mission work, some augment their science capabilities by flying in close, coordinated proximity to one another as part of a constellation—e.g., the Afternoon Constellation, or “A-Train.” Maintaining the orbits of each of these missions and keeping them all safely operating presents daily challenges. On page 4 of the March-April issue of The Earth Observer, we provide an overview of NASA’s Earth Science Mission Operations (ESMO) Project.

Learn about NASA's CYGNSS Mission!

This brochure provides an overview of NASA's Cyclone Global Navigation Satellite System (CYGNSS) mission--NASA’s first satellite mission to measure surface winds in the inner core of tropical cyclones, including regions beneath the eyewall and intense inner rainbands that could not previously be measured from space. These measurements will help scientists obtain a better understanding of what causes variations in tropical cyclone intensity, helping to improve our ability to forecast tropical cyclones such as Hurricane Katrina.

Join NASA for Earth Day

Join NASA at Union Station in Washington, DC to celebrate Earth Day, April 21-22, 2016.

EO-1 Celebrates 15 Years

Originally planned as a “one-year mission,” NASA’s Earth Observing-1 (EO-1) satellite celebrated the fifteenth anniversary of its launch on November 21, 2015. EO-1 was originally a technology testbed satel- lite, built quickly and inexpensively. EO-1 is finally heading for the end of its mission, which is pro- jected for October 2016. While the platform and its instruments are operating well, fuel reserves have been exhausted and the satellite has lost its orbital maintenance ability. The impressive milestone of reaching its 15-year anniversary, coupled with the impending end of the mission, provides an excellent time to review EO-1’s origins and goals, its expanded mission, and the utility of the data acquired so far.

Visit NASA at the 2015 AGU Fall Meeting

Please plan to visit the NASA booth (# 335) during the American Geophysical Union’s (AGU) forty-eighth annual Fall Meeting! This year’s exhibit hall will open on Monday, December 14, and will continue through Friday, December 18. This daily agenda provides presentation times for Hyperwall talks as well as In Booth Science Flash Talks. Scientists will cover a diverse range of topics including Earth science, planetary science, and heliophysics. The exhibit will also feature a wide range of science demonstrations, printed material, and tutorials on various data tools and services. We hope to see you in San Francisco!

2015: Looking Back and Looking Ahead

For NASA’s Earth Science Division, 2015 began with three successful launches—CATS to the ISS to study clouds and aerosols, SMAP to study soil moisture and freeze-thaw state from space, and NOAA’s DSCOVR mission, which includes two NASA Earth Science instruments now transmitting data from the Lagrange point 1 (L1). The Nov-Dec issue of The Earth Observer provides the latest updates on data products, milestones reached, and upcoming missions. The cover photo is a tribute to NASA’s Earth Observing-1 (EO-1) mission, which celebrated its fifteenth anniversary on November 21. The image at left shows the interior of South Carolina on October 8, 2015, as observed by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite. Floodwater covered broad swaths of farmland, forests, and wetlands east of the Congaree River.