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This dying star could affect Earth's night sky within our lifetime

Somewhere in the constellation Corona Borealis, a faint point of light that most people have never noticed is quietly ...

In 1946, the US Army sent a radar pulse toward the moon; its echo returned 2.5 seconds later and proved radio signals could reach beyond Earth

In 1946, military engineers achieved a groundbreaking milestone by bouncing a radar signal off the Moon. This experiment ...

Scientists explain how the ancient Greek Antikythera Mechanism copied the Moon's changing speed without modern technology

The Moon does not travel across the sky at a constant pace. Its speed changes throughout each orbit, a detail ancient ...