The difference between Planets and Grahas. Why are Sun and Moon included in the list of Navagrahas? Isn’t it true that Rahu and Ketu do not exist? What about Earth?
When the moon acts like a slow Shutter to the celestial camera, and when the shutter closes completely the beautiful celestial photograph of a night sky with Sun and its Corona becomes visible.
The science and astronomy behind the celebrations of Makara Sankranti (Sun entering Capricorn) and Utttarayana (Winter Solstice).
Research article on references to extra terrestrials in the ancient Sanskrit text Rigveda