来自MSN8 天
A hidden Earth-Like planet may be lurking in the Solar System
Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies offering crucial insights into the solar system’s formation.
BBC1 年
Planets of our Solar System
Mercury travels very fast around a short orbit, so its year is only 88 days long. Venus is the hottest planet in the Solar System with an average temperature of 460°C. Its thick atmosphere acts ...
BBC2 年
Changing ideas about the Solar System
The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.