Ash from Puyehue-Cordón Caulle
06.18.11 - This series of images tracks the volcanic ash from Chile to the eastern South Pacific Ocean, nearly completing a trip around the globe in eight days.
Increasing 'Bad' Ozone Threatens Human/Plant Health
08.05.10 - On July 6 this summer, Virginia's Department of Environmental Quality issued the region's first "unhealthy" air alert since 2008.
Tracking Iceland Volcano Ash Plume
05.05.10 - Last month when ash from a volcanic eruption in Iceland shut down air traffic over much of Europe, an international network of centers dedicated to this aviation hazard sprang into action.
Progress of 2009 Antarctic Ozone Hole
09.16.09 - The annual ozone hole has started developing over the South Pole, and it appears that it will be comparable to ozone depletions over the past decade.
What's Holding Antarctic Sea Ice Back From Melting?
09.01.09 - Sea ice at the other end of the world has been making headlines in recent years for retreating at a breakneck pace. Satellite measurements show that, on average, Arctic sea ice has decreased by four percent per decade.
Five Years of Aura
07.15.09 - Aura has fulfilled its requirement for a 5 year lifetime and continues to provide high quality science.
Smoke Over the Amazon
06.30.09 - Prior to widespread human settlement and forest clearing, there was no such thing as a fire season in the Amazon Rainforest.
Satellite Measurements Help Reveal Ozone Damage to Important Crops
5.27.09 - The U.S. soybean crop is suffering nearly $2 billion in damage a year due to rising surface ozone concentrations harming plants and reducing the crop's yield potential, a NASA-led study has concluded.
Satellite Data Reveal Impact of Olympic Pollution Controls
12.16.08 - Chinese government regulators had clearer skies and easier breathing in mind in the summer of 2008 when they temporarily shuttered some factories and banished many cars in a pre-Olympic sprint to clean up Beijing's air.
2008 Ozone Hole Maximum Announced
10.31.08 - The Antarctic ozone hole reached its annual maximum on Sept. 12, 2008, stretching over 27 million square kilometers, or 10.5 million square miles. The area of the ozone hole is calculated as an average of the daily areas for Sept. 21-30 from observations from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite.
Sulfur Dioxide and Vog from Kilauea
4.26.08 - In late April 2008, Kilauea Volcano Volcano on Hawaii's big island continued its pattern of increased activity, including elevated seismic tremors and emissions from the volcano's Halema'uma'u vent.
Air Quality Forecasts See Future in Space
12.13.07 - Weather broadcasts have long been a staple for people planning their day. Now with the help of NASA satellites, researchers are working to broaden daily forecasts to include predictions of air quality, a feat that is becoming reality in some parts of the world.
Proposed orbit change for the Aura spacecraft
10.29.07 - The Aura spacecraft currently flies about 15.22 minutes behind Aqua in the A-Train. The Aura Project is proposing to move Aura spacecraft closer to Aqua. Aura would follow Aqua by about 8 minutes along the same track after the move.
NASA Keeps Eye On Ozone Layer Amid The
Montreal Protocol's Success
9.13.07 - NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol, an international treaty designed to reduce the hole in Earth's protective ozone layer.
A NASA Space Sleuth Hunts the Trail of Earth's Water
01.31.07 - For the first time, NASA scientists have used a shrewd spaceborne detective to track the origin and movement of water vapor throughout Earth's atmosphere. This perspective is vital to improve the understanding of Earth's water cycle and its role in weather and climate.
Sources of the World's Tiny Pollutants
01.30.07 - Pinpointing pollutant sources is an important part of the ongoing battle to improve air quality and to understand its impact on climate. Scientists using NASA data recently tracked the path and distribution of aerosols -- tiny particles suspended in the air -- to link their region of origin and source type with their tendencies to warm or cool the atmosphere.
Tropical Ozone Studies Yield Surprises
12.14.06 - Two new NASA-funded studies of ozone in the tropics using NASA satellite data not previously available are giving scientists a fuller understanding of the processes driving ozone chemistry and its impacts on pollution and climate change.
Ozone Hole is a Double Record Breaker
10.19.06 - NASA and National Oceanic and Atmospheric Administration (NOAA) scientists report this year's ozone hole in the polar region of the Southern Hemisphere has broken records for area and depth.
Study Tracks Global Sources, Transport of Air Pollution
09.25.06 - A NASA and university study of ozone and carbon monoxide pollution in Earth's atmosphere is providing unique insights into the sources of these pollutants and how they are transported around the world.
Study Finds Ozone Layer on the Mend
08.30.06 - Scientists analyzed 25 years of independent ozone observations at different altitudes in Earth's stratosphere.
Washington Getting a Summertime Air Quality Exam
08.03.06 - Summer in the city can often mean sweltering "bad air days" that threaten the health of the elderly, children and those with respiratory problems. This summer the nation's capitol has been no stranger to such severe air-quality alerts.
Clock Ticking Slower On Ozone Hole Recovery
06.29.06 - The Antarctic ozone hole's recovery is running late. According to a new NASA study, the full return of the protective ozone over the South Pole will take nearly 20 years longer than scientists previously expected.
Aura Top Ten Discoveries
06.28.06 - Since launching in July 2004, Aura has been retrieving information and producing valueable data of the Earth and its atmospheric properties. View the selected top ten discoveries that Aura's instruments have brought us so far.
Tibet Provides Passage for Chemicals to Reach the Stratosphere
5.09.06 - Thunderstorms over Tibet provide a main pathway for water vapor and chemicals to travel from the lower atmosphere, where human activity directly affects atmospheric composition, into the stratosphere.
Explosive Eruption of Anatahan Volcano
5.04.05 - Sulfur dioxide (SO2) emissions from the eruption were measured by the Ozone Monitoring Instrument (OMI) on NASA's EOS/Aura satellite from the Anatahan (Mariana Islands)
OMI Sees the Soot Within Smoke
4.13.05 - Aura's Ozone Monitoring Instrument (OMI) provided data for the color-coded images which focus only on aerosols (particles in the atmosphere) from the damage of fires in Alaska.
02.18.05 - Arctic Air Helps Us Learn About Our Climate
Scientists head north to learn about air quality, ozone, and climate change predictions.
Seeing the Big Picture
02.04.05 - Were you ever told you needed to step back and see the whole picture?
Sulfur Dioxide Plume From Manam Volcano
1.28.05 - The Ozone Monitoring Instrument (OMI) recorded the Manam volcano eruption on NASA's new Aura satellite.
NASA's Aura: New Eye for Clean Air
12.14.04 - The instruments onboard Aura will help scientists monitor pollution production and transport around the world.
Aura Sheds New Light on Pollution
12.14.04 - Satellite offers unprecedented precision.
Whose Air Is It Anyway?
10.21.04 - We share the air we breathe not only with other people but also with the rest of our environment .
Bringing Students and Satellites Together
10.07.04 - Forty K-12 educators from the United States and France participated in an 11-day NASA-sponsored workshop this past summer aimed at bringing real-life science experiences into the classroom.
NASA Puts Safety First
07.15.04 - The safety measures taken during the launch of Aura are characteristic of NASA's commitment to safety and mission assurance.
07.15.04 - Aura, a mission dedicated to the health of the Earth's atmosphere, successfully launched today at 6:01:59 a.m. EDT.
Launch Advisory: Aura Launch Postponed
07.14.04 - The next launch attempt will be on Thursday morning, July 15, during a three-minute launch window that opens at 6:01:59 a.m. EDT.
Aura Launch Postponed
07.13.04 - The launch of NASA's Aura spacecraft has been delayed for at least 24 hours.
Launch Advisory: Aura Launch Rescheduled for July 13
07.10.04 - The launch of NASA's Aura spacecraft atop a Boeing Delta II rocket is rescheduled for Tuesday, July 13. Launch is set for the opening of a three-minute window at 6:01:59 a.m. EDT.
Aura Postponed 24 Hours to July 11
07.08.04 - The launch of NASA's Aura spacecraft has been postponed by at least 24 hours to Sunday, July 11 at 6:01:57 a.m. EDT.
Meet More Aura Scientists
07.08.04 - John Gille: Searching for Patterns in the Clouds, Anne Douglass: Making the World Safe for Blondes, Peter Siegel: Studying the Energy of the Universe
Aura Satellite Ready for July 10 Launch
06.29.04 - A next-generation Earth-observing satellite is scheduled for liftoff on Saturday, July 10 at approximately 6:01:57 a.m. EDT.
Ozone: Friend and Foe
06.24.04 - The same gas -- ozone -- that is the main factor in bad air also protects us from the Sun's harmful effects.
Meet The Aura Scientists
06.10.04 - Interviews with Andrea Razzaghi and Pieternel Levelt.
Aura to Check Health of Earth's Atmosphere
06.03.04 - A mission to understand and protect the air we breathe.
The Good, the Bad and the Ozone
06.01.04 - The story of a molecule and the spacecraft designed to help us understand it.
An Aura Around the Earth
05.17.04 - On June 19, the launch of Aura satellite will help scientists understand how atmospheric composition affect the Earth.
Tango in the Atmosphere
05.13.04 - Temperature, humidity, winds and the presence of other chemicals in the atmosphere influence ozone formation, and the presence of ozone, in turn, affects those atmospheric constituents.
Scientists Explain Aura Satellite Mission
05.13.04 - Researchers will brief the press and discuss science goals of the mission at 4 p.m. EDT, May 17 in Montreal.
Czech Schools Part of GLOBE's Success
02.05.04 - Six schools in the Czech Republic received awards recently for their collection of ozone data as part of a GLOBE project
The Globe Program: Science in the Sunshine
12.18.03 - GLOBE is an international organization of students and teachers who collect and share data about the health of the environment.