2024年9月30日 · NASA scientists calculated that Earth should have captured a "second moon" on Sunday (Sept. 29). The "mini-moon" is actually the tiny asteroid 2024 PT5, which usually orbits the sun as part of...

2024年11月21日 · Though it might sound extraordinary for Earth to gain a second moon, these gravitational captures are more common than you might think. Scientists have officially documented two prior “short captures,” which last about a week and are estimated to occur several times per decade.

2024年9月18日 · From Sept. 29 until Nov. 25, astronomers calculate that 2024 PT5— which is what scientists think is an asteroid but have dubbed a “mini-moon”—will be looping around Earth. It will eventually...

2024年10月2日 · Earth just got a second moon, but not for long. Here's why The ‘mini moon’ is actually a small asteroid, the size of a school bus, that is known as 2024 PT5.

Earth has a second moon, of sorts, and could have many others, according to three astronomers who did calculations to describe orbital motions at gravitational balance points in space that temporarily pull asteroids into bizarre orbits near our planet.

2024年10月4日 · A second moon has officially entered Earth’s orbit—sort of. Although it’s being called a “mini-moon,” it’s actually an asteroid named 2024 PT5.

2024年11月13日 · For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is more than just a guest staying over for a quick visit. It's here to...

2024年10月1日 · In a delightful cosmic twist, Earth has welcomed a mini-moon into its orbit. For two months, a tiny asteroid named 2023 QO1 will shimmy alongside our planet, capturing the attention of astronomers and stargazers alike.

2024年9月25日 · Earth is getting a second moon, specifically a “mini-moon.” In August, an asteroid, known as 2024 PT5, was spotted on the University of Hawaii and NASA’s Asteroid Terrestrial-impact Last Alert System.

2024年4月27日 · Earth’s “second moon”—an asteroid called Kamo’oalewa—appears to have come from the moon itself. Scientists have concluded this using computer models, revealing its origin as the Giordano...