Tags: technology

How Solar Sail Technology Works

In the 1970s, NASA scientists proposed sending a probe to Halley’s comet that would be propelled by the pressure of sunlight against a giant solar sail. Although the proposal was...

Astro-theology and the Great Cycles of Time

In 1894 the Indian astronomer, Sri Yukteswar, wrote that the cause of the precession of the equinox was the result of our sun’s orbit around another star. He estimated the...