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Vor 2 Tagen · The total mass of Earth's hydrosphere is about 1.4 × 10 18 tonnes, which is about 0.023% of Earth's total mass. At any given time, about 2 × 10 13 tonnes of this is in the form of water vapor in the Earth's atmosphere (for practical purposes, 1 cubic metre of water weighs 1 tonne). Approximately 71% of Earth's surface, an area of ...
- 3.688 km (2 mi)
- 1,370,000,000 km³ (328,680,479 cu mi) (97.5% of Earth's water)
- 361,000,000 km² (139,382,879 sq mi) (71% of Earth's surface area)
- List of countries by length of coastline
Vor 2 Tagen · From Earth, it is 1 AU (1.496 × 10 8 km) or about 8 light-minutes away. Its diameter is about 1,391,400 km (864,600 mi; 4.64 LS), 109 times that of Earth. Its mass is about 330,000 times that of Earth, making up about 99.86% of the total mass of the Solar System.
Vor 2 Tagen · This is a list of the world's countries and their dependencies by land, water, and total area, ranked by total area. The entries in this list include, but are not limited to, those in the ISO 3166-1 standard, which includes sovereign states and dependent territories.
Vor 4 Tagen · May 5, 2024, 4:42 AM ET (EarthSky) Sun news May 7: Champion region AR3663 keeps activity high. coronal mass ejection (CME), large eruption of magnetized plasma from the Sun ’s outer atmosphere, or corona, that propagates outward into interplanetary space. The CME is one of the main transient features of the Sun.
- Mark Moldwin
Vor 3 Tagen · What are Gravitational Waves? To say that gravitational waves are propagating disturbances in the curvature of spacetime means that gravitational waves affect the distances measured between objects as they pass through them. Just like light waves, gravitational waves have different polarizations.
Vor 4 Tagen · eccentricity of orbit around Earth 0.0549 — — recession rate from Earth 3.8 cm/year — — rotation period synchronous with orbital period 23.9345 hr — mean radius 1,737 km 6,378 km 1:4 surface area 37,900,000 km 2: 510,000,000 km 2 (land area, 149,000,000 km 2) 1:14 mass
Vor 3 Tagen · Its mass is 3.30 × 10 23 kg. Mercury is the smallest major planet in both size and mass.
