Uploaded February 2022 | Updated September 2026, 6 hours ago
Join Argos-4, an instrument hosted onboard the General Atomics’ GAzelle satellite, as it travels along it’s polar orbit tracking animals, birds, buoys, ships, and floats around the world.
In this video, we explore how and why it tracks all of these things.
[*Note: The GAzelle satellite was previously known as the Orbital Test Bed-3 satellite].
Join Argos-4, an instrument hosted onboard the General Atomics’ GAzelle satellite, as it travels along it’s polar orbit tracking animals, birds, buoys, ships, and floats around the world.
In this video, we explore how and why it tracks all of these things.
[*Note: The GAzelle satellite was previously known as the Orbital Test Bed-3 satellite].

![Hurricane Beryl Kicks Off 2024 Atlantic Hurricane Season
Hurricane Beryl, the first hurricane of the 2024 Atlantic hurricane season, rapidly strengthened to a Category 5 storm unusually early in the year. This explosive strengthening was fueled in part by exceptionally warm ocean temperatures. That heat was one of the factors behind NOAA’s prediction in May of an 85% chance that the 2024 Atlantic hurricane season would be above normal.
On top of the heat, another factor pointing to an especially active season is the likely development of La Niña later this summer. La Niña reduces Atlantic trade winds and leads to less wind shear (the changing of wind speed and direction with height). While La Niña has yet to officially develop, the main development region (the area in the tropical Atlantic where most tropical cyclones form) has been near record warm. Sea surface temperatures in this area are closer to what would be expected in the middle of September–the peak of hurricane season. Meaning there was ample fuel for Beryl to not only form but also to rapidly intensify.
Read more about the storm:
https://www.climate.gov/news-features/event-tracker/category-5-hurricane-beryl-makes-explosive-start-2024-atlantic-season
Credits:
NOAA
NASA
CIRA
Music: “Crystallize” by James Joshua Otto [PRS]; Atmosphere; Universal Production Music Hurricane Beryl Kicks Off 2024 Atlantic Hurricane Season](https://i.ytimg.com/vi/aUx28L3qkWo/mqdefault.jpg)

![Happy Earth Day from NOAA Satellites
NOAA satellites have been monitoring Earth’s weather and environment since 1970, which also happened to be the year the first official Earth Day took place! Building upon early pioneering efforts by NASA and others, today’s advanced satellites provide critical information that feeds forecast models and warns us of severe weather and environmental hazards. NOAA operates two types of satellites that monitor the Earth: polar-orbiting and geostationary.
As we celebrate Earth Day, let us marvel at the wonders of our planet and reflect on our responsibility to cherish and protect it. Together, let’s ensure that the view from space remains a symbol of hope and inspiration for generations to come.
Read more:
https://www.nesdis.noaa.gov/news/happy-earth-day-noaa-satellites
Credits:
NOAA, NASA, The Cooperative Institute for Research in the Atmosphere (CIRA)
Music:
“Eternal Grove” by Andreas Viktor Patrik Ahlm [STIM]; Chalk Music [PRS]; Universal Production Music Happy Earth Day from NOAA Satellites](https://i.ytimg.com/vi/anxzPQfK5hc/mqdefault.jpg)




![Earth From Orbit: Atmospheric River Hits the West Coast
Did you know that rivers don’t just run over land, but also through the sky?
Water vapor is constantly circulating through the atmosphere, particularly around the warm equatorial regions of our planet. Under the right conditions, it forms clouds and precipitation, and sometimes, long narrow bands of concentrated water vapor that carry huge amounts of moisture into the upper latitudes. These streams are referred to as “atmospheric rivers,” which are a primary feature in the global water cycle.
On Sunday, California and the Pacific Northwest were hit by both a large atmospheric river as well as what meteorologists call a “bomb cyclone,” which forms when air pressure drops rapidly and the storm explosively strengthens. According to NWS Seattle, the storm’s pressure dropped to 942.5 mb—the lowest pressure ever recorded off the Washington coast.
This convergence of storms brought more than half a foot of rain to parts of the Bay area in addition to strong winds, flash floods, and mud/landslides. They also bring the potential for heavy snow to higher elevations in the Sierra Nevada mountain range. The National Weather Service in Seattle and Tacoma, Wash. predict that the huge storm system may even reach Vancouver Island in southern British Columbia today.
Authorities from California, which has been plagued with wildfires and drought, warned that areas where fire has eliminated large amounts of vegetation (known as burn scars), could see debris flows of rushing mud, rocks, or vegetation that may sound like cracking, roaring, or even a freight train. They are warning residents to not attempt to cross a debris flow and to take shelter in the highest floor of their homes in case one occurs. Additionally, there are currently at least 150,000 power outages according to PowerOutage.US due to the extreme weather, and two people were killed when a tree fell on their vehicle near Seattle.
NOAA satellites are vital in providing important information about airborne moisture so we can better understand atmospheric rivers to not only make better weather forecasts, but manage water resources, and predict flood risks.
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Learn more: https://www.nesdis.noaa.gov/news/earth-orbit-atmospheric-river-hits-the-west-coast
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Video Credits:
NOAA
NASA/Goddard Space Flight Center
CIRA
Special Thank You for additional imagery to CIMSS, NASA’s SVS and NOAA’s Visualization Lab
Music Credit:
“Clouds Dispersing,” by Ariel Mann [BMI]; Universal Production Music Earth From Orbit: Atmospheric River Hits the West Coast](https://i.ytimg.com/vi/cXfJSK-m5zg/mqdefault.jpg)
![NOAA Satellites View 2023 Summer and Winter Solstices
The 2023 summer solstice occurred on Wednesday, June 21 at 10:57 a.m. Eastern Time, marking the longest day and shortest night of the year, as well as the first day of astronomical summer in the Northern Hemisphere. The summer solstice is the exact moment each year when the hemisphere reaches its greatest possible tilt toward the sun. The suns direct rays reach their northernmost position with respect to Earths equator, along the Tropic of Cancer, at 23.5°N latitude.
At the same time in the Southern Hemisphere, the winter solstice occurred when the hemisphere reached its greatest possible tilt away from the sun, marking the shortest day and longest night of the year.
Read more:
https://www.nesdis.noaa.gov/news/noaa-satellites-view-2023-summer-and-winter-solstices
Credits:
NOAA
NASA Goddard Space Flight Center
CIRA
Music:
“Magic and Mystery” by Saskia Golding [PRS]; Freshworx; Universal Production Music NOAA Satellites View 2023 Summer and Winter Solstices](https://i.ytimg.com/vi/crad8HzMjZ0/mqdefault.jpg)
![NOAA Satellites View Annular Eclipse
On Saturday, Oct. 14, 2023, NOAA satellites observed an annular solar eclipse traverse parts of North, Central, and South America.
During a solar eclipse, the Moon crosses between the Earth and the Sun, casting a shadowy path as it moves. However, the Moons orbit around the Earth is not a perfect circle; its slightly elliptical. This means that the Moons distance from Earth varies throughout its orbit.
When the Moon is near its apogee (the farthest point from Earth in its orbit), it appears smaller in the sky. Conversely, when its closer to its perigee (the closest point to Earth), it appears larger.
During an annular solar eclipse, the Moon moves in front of the Sun at or near apogee. At this distance, it is not large enough from our perspective on Earth to completely cover the Sun. The result is an annular solar eclipse, where the edges of the solar disk peek out around the moon, creating a “ring of fire” phenomenon if viewed from within its shadow’s path.
Credits:
NOAA
NASA
CIRA
Eclipse animations: NASA/CI Labs
Annular eclipse photo: NASA/Bill Dunford
Total solar eclipse photo: NASA/Aubrey Gemignani
Solar Eclipse Map: NASA/SVS
Music: “Eclipse” by Nate Dodge [ASCAP]; Audio Wax; Universal Production Music NOAA Satellites View Annular Eclipse](https://i.ytimg.com/vi/dGeKZVeQ8_E/mqdefault.jpg)