The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...

How did Jupiter’s formation shape the solar system, and specifically Earth’s orbit? This is what a recent study published in Science Advances hopes to address as a team of scientists investigated the ...

Everyone who has ever lived on Earth has been well-aware of the moon, but it turns out Earth also has some frequent temporary companions. These "quasi-moons" are small asteroids that enter into a kind ...

Researchers believe the “quasi-satellite” has accompanied Earth since 1957.

Scientists studying Jurassic rocks in China found that cyclical changes in Earth's orbit affected not only the climate, but ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research. The newly ...