Antariksha

In the cosmology found in the Vedas,
the earliest Hindu scripture, the antariksha is the middle region of the sky
between the earth and fixed stars; it corresponds to what might now be called
the atmosphere. This region is considered the theater of activity for Indra, god
of the storm and the most important
Vedic deity; it is also home to one manifestation of the Vedic god Agni (fire), in
his form as lightning.