About 45,500 results
Open links in new tab
  1. Shuttle Radar Topography Mission (SRTM) | NASA Earthdata

    Feb 11, 2000 · The Shuttle Radar Topography Mission (SRTM) payload flew aboard the Space Shuttle Endeavour during the STS-99 mission. SRTM collected topographic data over nearly …

  2. What is the altitude of the International Space Station?

    Jan 5, 2025 · The International Space Station (ISS) orbits Earth at an average altitude of approximately 420 kilometers (260 miles) above the Earth's surface. This altitude allows the …

  3. Terrain Elevation - NASA Earthdata

    Jan 2, 2026 · NASA's terrain elevation data measure current height and changes in land altitude and are useful for creating digital elevation models.

  4. Why does atmospheric pressure decrease as you ascend in …

    Mar 12, 2025 · As you go higher in altitude, the air becomes less dense, meaning there are fewer air molecules above you exerting pressure. This decrease in air density leads to a decrease in …

  5. Air Mass/Density | NASA Earthdata

    Dec 31, 2025 · Air mass/density is a fundamental property of atmosphere. Mixture of gases forming Earth's atmosphere, consisting of nitrogen (∼78%), oxygen (∼21%), water vapor, and …

  6. At what altitude can you observe the curvature of the Earth?

    Feb 10, 2025 · The curvature of the Earth can be observed at an altitude of around 35,000 feet or higher, such as when flying in a commercial airplane.

  7. How high up is a satellite in space and what factors ... - Answers

    Mar 12, 2025 · Satellites in space are typically located around 100 to 1,200 miles above the Earth's surface. The altitude of a satellite is determined by its intended purpose, such as …

  8. How high would you need to be in order to see the curvature of …

    Feb 12, 2025 · To see the curvature of the Earth, you would need to be at an altitude of at least 35,000 feet, which is roughly the cruising altitude of commercial airplanes.

  9. Clouds | NASA Earthdata

    Jan 2, 2026 · Clouds are made of water and or ice, come in more than a dozen types, and range in altitude from ground level to 280,000 feet high in Earth’s atmosphere. They water our lands, …

  10. Digital Elevation/Terrain Model (DEM) | NASA Earthdata

    Dec 29, 2025 · NASA's data for digital elevation models (DEM) comes from airborne and space-based sources and are useful for analyzing a majority of Earth's terrain.