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  • NASA TV live

    NASA TV live

    December 26, 2021 at 8:47 am / Cosmological, Global Patterns, Human Nature, Video

    Ever since the successful landing of Mars rover Curiosity in August 6th of 2012, NASA TV broadcasts have experienced a big surge in viewers. Since then many other successful missions and interesting Earth-based as well as cosmic phenomena have been transmitted to curious masses of viewers all over the world. NASA TV has a rich body of programming including recording and analysis of significant global events such as the Chelyabinsk airburst event. There are regular broadcasts from the International Space […]

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  • Forest Dynamics of North America Over 25 Years

    Forest Dynamics of North America Over 25 Years

    December 20, 2021 at 8:14 pm / Ecological Documentaries, Global Patterns, NatureDocumentaries.org, Video

    Using the images captured by the Landsat satellites, landscape ecologists produced a comprehensive visualization of decades of forest dynamics shaped by human management and natural disturbances. Dark green pixels had no disturbances in the 25 years studied. Yellow shows where a disturbance happened in a particular year. At this scale, what really stands out are the large fires in the West and timber harvesting in the Pacific Northwest, Maine, and all across the Southeast. Climate scientists need to know the […]

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  • A Satellite-eye View of Three Decades of Deforestation in the Amazon

    A Satellite-eye View of Three Decades of Deforestation in the Amazon

    December 17, 2021 at 1:39 pm / Ecological Documentaries, Global Patterns, NatureDocumentaries.org, Video

    This short documentary compiles satellite-tracked evidence for Brazilian Amazon rainforest destruction between 1985 and 2018. How do you map and quantify the Amazonian deforestation? The data recorded by the Landsat has revealed the stark rate of the Amazon deforestation in great detail. The Amazon is the largest rainforest in the world. It covers an area roughly equal to that of the continental United States. In a time series spanning over three decades, starting the year of 1985, we can observe […]

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  • Landsat 9: part 1, Getting Off The Ground – NASA Goddard Space Flight Center (2020)

    Landsat 9: part 1, Getting Off The Ground – NASA Goddard Space Flight Center (2020)

    December 16, 2021 at 1:18 pm / Global Patterns, Video

    Landsat missions span for more than half a century starting from 1972. In this first episode of the four part mini series we explore how the project got started and what sorts of challenges were faced during the initial design of this legendary Earth observing instrument. The episode introduces people including William Pecora, Stewart Udall and Virginia Norwood who were pivotal in realization of Landsat 1. The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA […]

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  • Landsat 9: part 2, Designing For The Future – NASA Goddard Space Flight Center (2020)

    Landsat 9: part 2, Designing For The Future – NASA Goddard Space Flight Center (2020)

    December 16, 2021 at 1:13 pm / Global Patterns, Video

    We cannot protect our planet if we cannot understand it. Understanding a complex system requires accurate measurements and quantification of dynamic processes. The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey (USGS).Landsat missions span for more than half a century starting from 1972. The unbroken sequence of images covering the entire Earth’s surface provide an invaluable record of historical land use. In this second episode of the four part mini […]

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  • Landsat 9, part 3: More Than Just A Pretty Picture – NASA Goddard Space Flight Center (2020)

    Landsat 9, part 3: More Than Just A Pretty Picture – NASA Goddard Space Flight Center (2020)

    December 16, 2021 at 1:11 pm / Global Patterns, Video

    In this third episode of the four part mini series, we explore challenges faced by the Landsat ground crew. The ground station crew is responsible for maintaining the constancy of the data stream coming from the satellite. The storage capacity of the memory onboard the satellite is finite and if a problem arises on the ground in receiving the data there is a risk of missing irreplaceable recordings. Landsat Program missions span for more than half a century starting from […]

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  • Landsat 9, part 4: Plays Well With Others – NASA Goddard Space Flight Center (2020)

    Landsat 9, part 4: Plays Well With Others – NASA Goddard Space Flight Center (2020)

    December 16, 2021 at 1:04 pm / Global Patterns, Video

    In this last episode of the four part mini series, we take a look at a few examples for how scientists are using the Landsat data to find answers to diverse questions. For instance biologists use imagery to quantify evaporative stress in plants and health of the trees. Landsat measurements can be combined with that of GRACE to interpret effects of underground water levels on the plant cover in a given area. Landsat data can integrate with data coming from […]

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