Astronomy – Ch. 17 The Nature of Stars (1 of 37) Introduction

Astronomy – Ch. 17 The Nature of Stars (1 of 37) Introduction
ΑΣΤΡΟΝΟΜΙΑ - VIDEO Η ΦΥΣΗ ΤΩΝ ΑΣΤΡΩΝ

Astronomy – Ch. 17 The Nature of Stars (1 of 37) Introduction

1 Ιανουάριος 2016
[ot-video][/ot-video]
CH17 V01