The Shuttle Radar Topography Mission (SRTM) payload flew aboard the Space Shuttle Endeavour during the STS-99 mission. SRTM collected topographic data over nearly 80% of Earth's land …

3 days ago · Digital Elevation Models, or DEMs, are three-dimensional models of the “bare earth” surface, showing elevation and topography without trees, buildings, or other objects. DEMs are …

Feb 9, 2026 · NASA's terrain elevation data measure current height and changes in land altitude and are useful for creating digital elevation models.

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 ISS to remain in a …

Space-based platforms can be placed in several types of orbits around Earth. The three common classes of orbits are low-Earth orbit (approximately 160 to 2,000 km above Earth), medium-Earth …

NASA’s OpenAltimetry is a free and powerful map-based data visualization and discovery tool for exploring surface elevation profiles from the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) and …

Feb 13, 2026 · 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 other trace …

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 communication or …

Jul 2, 2024 · At this altitude, water will freeze at around 0.2 degrees Celsius. The freezing point of water in Celsius is 0 degrees.

Jun 1, 2024 · Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure …