The GLOBE Program @GLOBEProgram

Learn how GLOBE Clouds observations will be used in research to help NASA refine the PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) satellite’s cloud detection technologies by watching the Meet PACE webinar recording: tinyurl.com/meet-pace-webi….

#ICYMI. On the 27th of August 2026, Dr. Andy Sayer from the NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission joined Marilé Colón Robles from the GLOBE Clouds team to introduce PACE and a new Clouds challenge to collect clouds observations aligned with PACE worldwide. Dr. Sayer discussed how GLOBE clouds data will be useful to his research, and Ms. Colón Robles described the process of collecting data with the GLOBE Observer app during the PACE Clouds Challenge, which runs from 15 September to 15 October 2026. To view the video, please visit youtu.be/nZnHF1PrsFQ?si…!

GLOBE has several exciting initiatives coming up! Stay connected by signing up for the GLOBE News Brief for the latest GLOBE news, opportunities, and events! Subscribe here: lp.constantcontactpages.com/sl/CiMQQzL/glo…

#QuickGLOBETip for making GLOBE Mosquito observations! Learn to identify mosquito habitats. Tip #7: Man-made water sources, such as yard drainage, can provide an ideal environment for mosquito habitats. Explore this page for more tips and resources: tinyurl.com/mosquito-habit…

Join us in 1 week for the 97th Trees Around the GLOBE Campaign webinar, "The Timing of Nature with the NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Mission and the North American Phenology Campaign.” During this webinar, we will partner with the GLOBE Observer team to present about the PACE satellite as part of the September 2026 GLOBE Observer Connect event. PACE vegetation scientist, Skye Caplan, will present "Trees Are Just Big Plankton: Land Surface Science with the PACE Mission.” Following the PACE presentation, we will hear about the North American Phenology Campaign from the U.S. GLOBE Office. Learn more about Trees Around the GLOBE at globe.gov/web/trees-arou…. Register for the webinar at observer.globe.gov/go-connect!

A new NASA Earth Observatory article highlights changing leaf colors captured by Landsat-9 and invites citizen scientists to join GLOBE to observe and record their local leaf color changes. science.nasa.gov/earth/earth-ob…

NASA Earth @NASAEarth

5 days ago

Fall vibes come early in the far north 🍂 The low-growing shrubs in this area reach peak red, orange, and yellow in mid-September, finds a @NASA and @SDState analysis of satellite data. But blink and you might miss it! Peak color can last a week or less in the far north.

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Android users: we’ve encountered an issue with the GLOBE Observer app that we are actively working to resolve. If you are unable to download the latest version of the app, please be patient. We will update this news item when the issue is resolved. tinyurl.com/globe-andriod

The PACE Clouds Challenge starts tomorrow! Help scientists on NASA’s PACE satellite mission by taking Clouds observations within a 5-minute window of PACE passing overhead. Your photos will help improve PACE’s cloud detection technologies. Not sure how to get started? Visit tinyurl.com/pace-clouds-ch… to learn how to set up alerts for when PACE is overhead and take a GLOBE Clouds observation, and to find out more about PACE!

Do you have a question about the GLOBE website? On the last Wednesday of each month, we will hold a series of learning sessions offering friendly, practical support for the GLOBE.gov website. The first session, on the 30th of September at 10 am ET (14:00 UTC), will cover account creation and provide time for participants’ general website questions. Learn about the upcoming sessions at tinyurl.com/website-learni….

When will the PACE satellite next pass over your location? Check out this short video tutorial to learn how to turn on satellite flyover notifications for your current location on the GLOBE Observer app. Satellite flyover timing will be especially important for the upcoming PACE Clouds Challenge, which starts the 15th of September.

¡Mañana ofreceremos un seminario web de capacitación para voluntarios del Reto PACE y Nubes en español! Adquiere las habilidades necesarias para convertir tus observaciones cotidianas del cielo en apoyo para la investigación científica de la Tierra de la NASA durante el Reto PACE y Nubes. Aprende a estimar con precisión el porcentaje de cobertura nubosa, registrar tus observaciones dentro del intervalo crítico de 5 minutos del sobrevuelo del satélite PACE utilizando la aplicación GLOBE Observer y revisar las imágenes de satélite correspondientes que la NASA envía a los usuarios. Regístrate en el seminario web de capacitación en español del 11 de septiembre, a las 3:00 p. m. ET (19:00 UTC): tinyurl.com/es-clouds-chal… @NASA_es —---------------------------- We are holding a PACE Clouds Challenge volunteer training in Spanish tomorrow! Gain the skills needed to turn everyday sky observations into support for NASA Earth science research during the PACE Clouds Challenge. Learn how to accurately estimate cloud cover percentage, record observations within the critical 5-minute PACE overpass window using the GLOBE Observer app, and review the matched satellite imagery NASA will send back to users. Register for the 11 September, 3 pm ET (19:00 UTC) training in Spanish: tinyurl.com/es-clouds-chal…

Did you know that GLOBE observations now match to 10 satellites, including 6 for your cloud observations and 4 for your land cover observations? Learn more about satellite data matching and how you become part of these exciting opportunities to collect data for @NASA scientists. tinyurl.com/muz99fa8!

#QuickGLOBETip for making GLOBE Clouds observations! Are there contrails in your sky? Tip #6: You can report contrails as well as clouds. Contrails are straight-line clouds. Explore this page for more tips and resources: tinyurl.com/cloud-tips

NASA studies air pollution around the world to better understand what’s in the air and what it can mean for human health. #CleanAirDay

NASA Earth @NASAEarth

a year ago

Clean air matters for everyone. 🌎 With missions like TEMPO, NASA helps track air quality across North America, helping communities plan for a healthier future. #CleanAirDay Learn more: go.nasa.gov/4m3UQ3d

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How will El Niño affect hurricanes? NASA satellites are helping improve predictions. 🌀 NASA and European Sentinel-6 satellites measure sea level height to track changes in ocean heat and better understand shifts in hurricane patterns. The data can help guide disaster response.

Your GLOBE Clouds observations can help NASA scientists refine cloud detection technology on the PACE satellite! Join the PACE Clouds Challenge from the 15th of September to the 15th of October 2026 and share your clouds observations to see how they compare to observations taken by satellites above. Clouds observations taken within a 5-minute window of PACE passing overhead will help NASA scientists like Dr. Andy Sayer compare ground-based observations of clouds to PACE data to get a sense of how well PACE measures cloud edges and total cloud cover. Learn how to get started at tinyurl.com/pace-clouds-ch….

Learn how GLOBE Clouds observations will be used in research to help NASA refine the PACE (Plankton, Aerosol, Cloud and ocean Ecosystem) satellite’s cloud detection technologies by watching the Meet PACE webinar recording: tinyurl.com/meet-pace-webi…. Want to help? Watch the webinar for details about the PACE Clouds Challenge, which encourages Clouds observations when the PACE satellite passes overhead. The challenge starts the 15th of September.

Join us in 2 weeks for the 97th Trees Around the GLOBE Campaign webinar, "The Timing of Nature with the NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Mission and the North American Phenology Campaign.” During this webinar, we will team up with the GLOBE Observer team to present about the PACE satellite as part of the September 2026 GLOBE Observer Connect event. PACE vegetation scientist, Skye Caplan, will give the presentation "Trees Are Just Big Plankton: Land Surface Science with the PACE Mission.” Following the PACE presentation, we will hear about the North American Phenology Campaign from the U.S. GLOBE Office. Learn more about Trees Around the GLOBE at globe.gov/web/trees-arou… and GLOBE Observer Connect at observer.globe.gov/go-connect!

Will you be joining the PACE Clouds Challenge? Learn how to participate in the challenge at an upcoming training webinar on the 9th of September at 3 pm ET (19:00 UTC). Gain the skills needed to turn everyday sky observations into support for NASA Earth science research during the PACE Clouds Challenge. Learn how to accurately estimate cloud cover percentage, record observations within the critical 5-minute PACE overpass window using the GLOBE Observer app, and review the matched satellite imagery NASA will send back to users. A training in Spanish will be held on the 11th of September at 3 pm ET (19:00 UTC). Register for the training: tinyurl.com/clouds-challen…