The Moon was a lot closer to Earth 2.46 billion years ago, and the shorter distance contributed to shorter days.
Tiny magnetometers have turned your phone into a compass, and new research shows they are sensitive to geomagnetic storms.
Using cosmogenic nuclide dating, scientists determined a 10-meter core just below the surface to be over a million years old.
Atomic clocks are now so accurate that Earth’s gravity can be seen to slow them down. Geodesy is preparing to use this relativistic effect to measure elevation.
When calibrating satellite observations with ground-based ones, estimated precipitation rates are improved by considering that snow takes longer to fall compared to rain.
NASA’s Deep Space Atomic Clock, slated to launch later this month for a demonstration flight, will help spacecraft more efficiently navigate the solar system.
On Friday, the kilogram will join its fellow metric units with a definition based on fundamental physical constants, but these units maintain links to their roots in the geosciences.
Researchers probe millennia-old deep-ocean sponges for links between ocean nutrients and climate.
Scientists plan projects this year to help a rugged, troubled region of central Asia retune traditional timekeeping methods based on environmental cues in the face of climate change.