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A satellite in Earth Orbit

How Do Satellites Stay in Orbit? A Quick and Easy Guide

Gravity is the fundamental principle of orbits and Universe itself. But is it enough to explain the beautiful behavior of the celestial bodies? This article explains the fundamental principles of gravity, centripetal force and how they work together to keep satellites in orbit. Using clear, beginner-friendly language, it breaks down how Earth’s gravity pulls satellites inward while their forward motion creates a balanced centripetal force—resulting in stable orbits.

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Mars colonization represented by a robot on Mars' surface

Mars Colonization: How Close Are We?

Humanity has long dreamed of setting foot on Mars—and staying there. In recent years, that dream has moved closer to reality, with major space agencies and private companies developing the technologies needed to send humans to the Red Planet. But while milestones like NASA’s Perseverance rover and SpaceX’s Starship prototype mark real progress, colonizing Mars remains a monumental challenge. From surviving deadly radiation to producing food and oxygen on a distant world, the path to a self-sustaining Martian settlement is still filled with technical, biological, and logistical hurdles. So, how close are we, really?

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