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

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

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 ...

The discovery of a new celestial object in the Earth's neighborhood has created a buzz online asking whether the planet now has a second moon in its orbit. Any thoughts that Earth is now going to be ...

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

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 ...