It’s yet another indication that we’re in a very unusual time.” Days on Earth have not always been 24-hours long, with rotations during the Bronze Age clocking in at roughly 23 hours.

To make the Moon look so large in the background, photographers need to use superzoom telephoto lenses of at least 1,000mm ...

Earth takes about 24 hours to rotate, but the key word is about. For thousands of years, the Earth has been generally slowing down, with the rate varying from time to time, said Agnew and Judah ...

First, as a "quasi-satellite" of Earth, it is so close to our planet that it appears to orbit it, even though its actual orbital partner is the sun.

Called aphelion, the sun at that moment will be 94,502,939 miles (152,087,738 km) from our Earth (measured from center to center), or 3,096,946 miles (4,984,051 km) farther as compared to when the ...

Kaib previously published work that suggested Earth's orbit was altered by a passing star three million years ago. “We looked at the typical, run-of-the-mill flybys,” Raymond told New Scientist.

While still an extremely low possibility, asteroid 2024 YR4's impact probability with Earth has increased from about 1% to a 2.3% chance on Dec. 22, 2032. As we observe the asteroid more, the ...

Now, a new study, published in the peer-reviewed journal Communications Earth & Environment, seems to have cracked the mystery. An advanced computer simulation, taking into account the properties ...

If the Earth is indeed curved, we can use previous experimental results to say that it has a radius (R) of 6.38 million meters. Let's also approximate the height (h) of a human eye at about 1.7 ...