The placement of ancient Greek temples was no accident. Geodetic triangulation theory suggests that their locations formed intentional geometric patterns, such as equilateral and isosceles triangles.

This stone slab with the carvings of a planisphere, a chart of constellations, was made in 1396 by 11 astronomers including Gwon Geun and Yu Bang-taek under the orders of King Taejo.

With modern GPS, we often don’t think too hard about how to navigate, but GPS does not work very well on the open sea. That is why modern ships are equipped with technology such as radar and a ...

(Note: The circled planets are ones that you will need a telescope to see.) We created a rough illustration on location and brightness of the planets for the nights of Jan. 17 and 18. NASA says those ...

And the latest location tracking nightmare to hit phone users shows the threat remains, despite new protections built into our iPhone and Android devices. NSA has warned users how to stop this ...

Hot on the heels of a spectacular comet late last year, another celestial visitor is set to put on a show. And Southern Hemisphere observers have a ringside seat.

A rare ‘parade’ of planets seen only once every few years will light up the night sky this week in a must-see celestial display. Stargazers are eagerly anticipating this week’s planetary ...