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  1. What is gravity? - NASA

    Newton's "law" of gravity is a mathematical description of the way bodies are observed to attract one another, based on many scientific experiments and observations. The gravitational …

  2. Matter in Motion: Earth's Changing Gravity | NASA Earthdata

    Dec 28, 2020 · A new satellite mission sheds light on Earth's gravity field and provides clues about changing sea levels.

  3. Gravity/Gravitational Field - NASA Earthdata

    6 days ago · Data from NASA satellite observations provide information about Earth's mean gravity field and inform monthly maps of the time-variable gravity field, both of which are useful …

  4. StarChild: Glossary - NASA

    GRAVITATIONAL PULL See Gravity GRAVITY The force of attraction between two objects which is influenced by the mass of the two objects and the distance between the two objects. …

  5. Glacier Power: How do Glaciers Move? | NASA Earthdata

    Dec 11, 2025 · A glacier is a large accumulation of many years of snow, transformed into ice. This solid crystalline material deforms (changes) and moves. Glaciers, also known as “rivers of ice,” …

  6. The Case of the Missing Waves - NASA Earthdata

    Dec 28, 2020 · Gravity waves are a real challenge because they are largely invisible to climate and weather models. The crux of the problem is the way satellites see them. Satellite …

  7. This map, created using data from the Gravity Recovery and Climate Experiment (GRACE) mission, reveals variations in the Earth's gravity field. Dark blue areas show areas with lower …

  8. How do we know that dark matter exists? - NASA

    The cluster does not behave as scientists would expect it to if only the visible matter is generating the gravity present in the cluster. 'Dark matter' theory suggests that a huge amount of dark …

  9. Crustal Dynamics Data Information System | NASA Earthdata

    NASA's Crustal Dynamics Data Information System (CDDIS) provides data and information to support the international space geodesy community.

  10. ASDC Direct Data Download - NASA Earthdata

    NASA ASDC's Direct Data Download tool provides the ability to access and download all publicly available data collections via https.