The idea that Earth has only one moon is considered to be true, but that isn't always the case. In fact, sometimes, it's had ...

Orbital precession greatly influences North ... Model, proxy and isotopic perspectives on the East African Humid Period. Earth and Planetary Science Letters 307, 103-112 (2011).

The planet's home star, IRAS 04125+2902, sits just over 520 light-years from Earth, making it quite close in galactic terms.

A few milliseconds added to that 24-hour period could cause problems ... The moon uses Earth’s rotational energy to take it into an orbital path slightly farther away. In about 200 million ...

The team's hypothesis calls for a temporary ring around Earth, which would explain why impacts were constrained to a ...

Quite a few comets pass through Earth's orbits every year, but the so-called devil comet earned a rather unique nickname.

Asteroids that could threaten Earth are all 140 meters or less ... DART made a deflection that reduced the orbital period, he says. The more we do the deflection in advance, the less energy ...

Earth is saying goodbye to an asteroid that has been a "mini-moon" of sorts since late September, when it joined the planet's ...