The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward around the ecliptic once in 18.61 years (6,798 days). This drift carries ...

Looking at the Moon through binoculars or a telescope reveals a topography that hints of a violent history. Here’s a look at ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...