Earth's rotation is randomly speeding up, and nobody is quite sure why. These speedups, which have occurred several times over the last few years, haven't had any effect on daily life, but they also ...

Scientists are also investigating changes in the rotation of the Earth's inner core. They suspect that couplings with the Earth's mantle could contribute to ...

Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and astronauts.

If you’re the kind of person who gets a lot done, you’re grateful for every one of the 86,400 seconds that make up a day. On July 9, however, as well as on July 22, and August 5, you won’t get your ...

Would you guess that the Earth is spinning at 1,000 mph around its axis and at the same time hurtling through space on its ...

The Moon appears unchanging in the night sky, but its movement hides a slow transformation. For decades, scientists have observed that our satellite is gradually moving away from Earth, year ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

MEMPHIS, Tenn. - If it feels like summer is flying by, science says you’re not imagining it. Starting Wednesday, July 9, Earth is literally spinning faster than usual. Scientists recorded one of the ...

Precise orbit determination (POD) is vital for satellite navigation, positioning, and timing services, especially as large Low Earth Orbit (LEO) constellations grow in scale. A new method integrates ...

Long ago, the Moon was much nearer Earth. Scientists believe a protoplanet collision created the Moon 4.5 billion years ago. Fossil clam shells show shorter Earth days in ancient times.

Earth's rotation is randomly speeding up, and nobody is quite sure why. These speedups, which have occurred several times over the last few years, haven't had any effect on daily life, but they also ...