If 1 million satellites were positioned at different points between Earth and the moon, less than 10% would survive long enough to be worth the hassle of sending them up in the first place, new ...

Researchers have developed a mathematical method that enables more precise calculations of the most economical travel routes ...

For decades, astronomers have tracked a small group of space rocks that share Earth’s orbit around the sun. Among them, Asteroid 2016 HO3 and the well-known quasi-satellite Kamo’oalewa have sparked ...

Earth has a group of cosmic stalkers. Known as "co-orbitals," these small bits of rock have a 1:1 mean motion resonance with Earth. Basically, they take the exact same amount of time to orbit the sun ...