(via minutephysics) We think of the moon as orbiting the earth, following a spiraling trajectory as the earth itself orbits the sun. But this is wrong. Not only is the moon's orbit NOT a spiral ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's illustration depicts a typical asteroid. Quasi-moon 2025 PN7 is an asteroid that orbits the sun but appears close to ...

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely unknown. Astronomers have now confirmed the existence of 2025 PN7, a so-called ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have discovered 2025 PN7, a small quasi-moon that mirrors Earth’s orbit around the Sun. (CREDIT: ESA) Earth has just ...

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 ...

Viral speculation that earth was now home to a second moon has circulated social media over the past days, but astronomers are keen to point out that reality is more complicated but no less compelling ...

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in Research Notes of the AAS, a non-peer reviewed publication from the American ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A small space rock ...

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 ...