Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

Earth currently has a second moon - but it won’t stay long. ... By now it will have travelled to the far side of the Sun, but will pass close to Earth again in 2028.

An asteroid has been trailing Earth around the sun since 100 BC, astronomers estimate. The space rock at first appears to be another moon , but it's actually orbiting the sun and not Earth.

Earth will be hosting a new guest this fall. No, it's not an alien. It's an asteroid. The space rock, which has been named “2024 PT5,” has been traveling along its normal path around the sun ...

An asteroid known as 2020 CD3, only the second asteroid known to orbit Earth, was discovered by the Catalina Sky Survey. It acts as a temporary mini-moon whirling around our planet, and is likely ...

If you want to see what might happen to Earth's tilt without the Moon, just look at Mars. Without a large moon to stabilize it, it's believed that the tilt of Mars could vary by as much as 50 degrees.

Read: Earth has had a secret second moon for months now. Gray places the shift around March 7. Since then, 2020 CD3 has been bound by the sun’s gravity, which means it’s not our mini-moon anymore.

But it’s there, orbiting the Earth, accompanying us on our journey around the sun. A pair of astronomers discovered the miniature moon on the night of February 15.

But with no moon, sometimes Earth could be a straight 90 degrees, ... That’s because the sun’s gravity would still create tides, albeit smaller ones. This would impact wildlife, ...

The Minor Planet Center has announced that Earth now has two moons. But don’t bother running outside to check – this second satellite is tiny and temporary. The newcomer, designated 2020 CD3 ...

When the Earth, Moon, and Sun perfectly align during the new Moon, a solar eclipse will result. But ... More whether that's annular, total, or hybrid depends on the Moon's distance from Earth.

The moon is an ally for life on Earth. It governs Earth’s seasons, affects our tides, gives us the length of our day, protects us from asteroids, and more.