Artemis II was the first crewed mission of NASA’s Artemis program. In April 2026, four astronauts flew aboard the Orion spacecraft on a journey that took them farther from Earth than any humans had traveled since the Apollo era. The mission tested Orion’s life support…
Continue reading...Mission orbits are specially designed paths that spacecraft follow to accomplish scientific, exploratory, or operational goals. These orbits are carefully chosen and adjusted using precise calculations of gravity, speed, and timing. From simple Earth orbits to complex interplanetary trajectories, mission orbits demonstrate the practical application…
Continue reading...Space debris consists of human-made objects in orbit around Earth that no longer serve a useful purpose. This includes defunct satellites, spent rocket stages, fragments from collisions and explosions, and even small pieces of paint or metal flakes. As space activity increases, the amount of…
Continue reading...The Global Positioning System (GPS) is a constellation of satellites that provides precise location, navigation, and timing information to users worldwide. The system relies on carefully coordinated orbits to ensure continuous coverage of Earth’s surface at all times. GPS satellites operate in medium Earth orbit…
Continue reading...The International Space Station (ISS) is the largest human-made object ever placed in orbit. It circles Earth at an average altitude of about 250 miles (400 km) in low Earth orbit, completing one full trip around the planet approximately every 90 minutes. This continuous journey…
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