The modern theory that the moon is full of dust is not accepted in the verses of Srimad-Bhagavatam. In regard to this verse (SB 5.20.13), Srila Visvanatha Cakravarti Thakura says, susaspani sukomala-sikhas tesam rocisa

Expressions researched:
"The modern theory that the moon is full of dust is not accepted in the verses of Śrīmad-Bhāgavatam. In regard to this verse, Śrīla Viśvanātha Cakravartī Ṭhākura says, suśaṣpāṇi sukomala-śikhās teṣāṁ rociṣā"

Srimad-Bhagavatam

SB Canto 5

The modern theory that the moon is full of dust is not accepted in the verses of Śrīmad-Bhāgavatam. In regard to this verse, Śrīla Viśvanātha Cakravartī Ṭhākura says, suśaṣpāṇi sukomala-śikhās teṣāṁ rociṣā: the kuśa grass illuminates all directions, but its flames are very mild and pleasing. This gives some idea of the flames existing on the moon.

SB 5.20.13, Translation and Purport

Outside the ocean of liquor is another island, known as Kuśadvīpa, which is 800,000 yojanas [6,400,000 miles] wide, twice as wide as the ocean of liquor. As Śālmalīdvīpa is surrounded by a liquor ocean, Kuśadvīpa is surrounded by an ocean of liquid ghee as broad as the island itself. On Kuśadvīpa there are clumps of kuśa grass, from which the island takes its name. This kuśa grass, which was created by the demigods by the will of the Supreme Lord, appears like a second form of fire, but with very mild and pleasing flames. Its young shoots illuminate all directions.

From the descriptions in this verse, we can make an educated guess about the nature of the flames on the moon. Like the sun, the moon must also be full of flames because without flames there cannot be illumination. The flames on the moon, however, unlike those on the sun, must be mild and pleasing. This is our conviction. The modern theory that the moon is full of dust is not accepted in the verses of Śrīmad-Bhāgavatam. In regard to this verse, Śrīla Viśvanātha Cakravartī Ṭhākura says, suśaṣpāṇi sukomala-śikhās teṣāṁ rociṣā: the kuśa grass illuminates all directions, but its flames are very mild and pleasing. This gives some idea of the flames existing on the moon.