Rigveda 7.66.15

शी॒र्ष्णःशी॑र्ष्णो॒ जग॑तस्त॒स्थुष॒स्पतिं॑ स॒मया॒ विश्व॒मा रज॑: ।स॒प्त स्वसा॑रः सुवि॒ताय॒ सूर्यं॒ वह॑न्ति ह॒रितो॒ रथे॑॥

śīrṣṇaḥśīrṣṇo jagatastasthuṣaspatiṃ samayā viśvamā raja: |sapta svasāraḥ suvitāya sūryaṃ vahanti harito rathe ||

Our plain-language meaning of this verse is waiting for scholar review.