Space exploration

Gravity Assist and the Clever Trick Spacecraft Use to Travel Faster

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Sending spacecraft across the solar system is far more challenging than launching them into orbit. Distances between planets are enormous. Traveling from Earth to distant worlds like Jupiter, Saturn, or Neptune requires incredible amounts of energy and fuel. If a spacecraft had to rely only on its own engines, many missions would become impossibly expensive … Read more

Voyager 1: The Spacecraft That Left Our Solar System — And Is Still Talking to Us

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In 1977, humanity launched a spacecraft with a mission expected to last just a few years. No one imagined that nearly half a century later, it would still be alive—quietly whispering data back to Earth from a place no human-made object had ever reached before. That spacecraft is Voyager 1. Today, Voyager 1 is the … Read more