Nardebām-e Asmān [1] (Persian :نردبام آسمان, The Ladder of the Sky) is an Iranian TV series directed by Mohammad Hossein Latifi and produced in 2008.

The title of the Series is that of Kashani's astronomical treatise, with the Arabic title Soll'am-os-Samā' (literally meaning The ladder of the sky), which he completed on 1 March 1407 CE in Kashan.

The Series narrates the life and the scientific works of the Iranian mathematician and astronomer Ghiyath al-Din Jamshid Kashani (1380–1429).

It covers the entire life of Jamshid Kashani, from his birth in Kashan, until his death in Samarkand where he lived during the later part of his life, on the invitation of the Timurid ruler of Samarkand Ulugh Beg, as the designer, architect and director of the Samarkand observatory.

[4] Although the subject matter of the series is a historical one, almost all the dialogues throughout the series are in modern style and not strictly formal; even in the Court of Ulugh Beg courtly language is largely avoided.