The universe has quasi-moons, mini-moon, and moonlets, but no official definition of what counts as a moon.
The rare interstellar comet 3I/ATLAS is under intense scrutiny as it passes through the solar system. Spacecraft like Hera, ...
The Asteroid 2025 PN7 will orbit near the Earth as a quasi-moon until 2083, when it will drift away at high speed after ...
Launched in 1977, the twin Voyager 1 and Voyager 2 spacecraft embarked on a Grand Tour of the outer solar system, a feat made ...
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🌑 A Second Moon Orbiting Earth?

An asteroid may share our annual trajectory around the Sun. This recent discovery raises questions about the complexity of ...