Observations of Magnetic Declination made at Trevandrum and Agustia Malley in the Observatories of his Highness the Maharajah of Travancore, G.C.S.I., in the Years 1852 to 1869.

Is Texas under a rip current risk? While Hurricane Erick won’t impact Texas or its rip currents, moderate rip current conditions still exist along the Texas coast today.

Here are maps you can use to track this latest severe weather threat.

Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.

In the days since GPS was invented, many of us have lost the skill of navigating by a good old compass and map. As a family ...

North Pole shifts towards Siberia, updating Earths magnetic map tenfold Magnetic North Poles rapid transition prompts updates for navigation systems a ...

THE U.S. Coast and Geodetic Survey makes magnetic observations at a set of repeat stations every five years, and publishes the results at similar intervals, in the form of tables of secular ...

The research provided strong evidence that migratory birds rely on inclination and declination to determine their location, even when these cues conflict with other magnetic field components.

The G4 geomagnetic storm that brought auroras across the U.S. also generated electrical currents in rocks under the ground.

Magnetic Field Of The Sun’s Atmosphere Seen Like Never Before Thanks To 114 New Maps A new instrument means that the coronal magnetic field is finally being mapped almost every day.