Article of the Day: Escape Velocity

Article of the Day:
Escape Velocity

A vital concept in rocket science, escape velocity is the minimum speed a body must achieve in order to escape from the gravitational field of a larger celestial body, such as Earth or the Sun. Escape velocity decreases with altitude and depends on the mass of the larger body and the distance of the smaller body from the larger one’s center. The velocity needed to escape from the Earth at its surface is approximately 7 miles (11.3 km) per second. What is the escape velocity at the Sun’s surface? More…: https://play.google.com/store/apps/details?id=com.tfd.mobile.TfdSearch

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