Orrery showing Sun, Earth & Moon by Thomas Wright, London early 18th century. Modified for display with wooden base (removed) and later separate pulley to drive wheelwork (removed). Orrery showing Sun ...

Miniature orrery by Troughton, London with armillary bands and octagonal base, showing three planets including the Earth and Moon with wooden case, late 18th century to early 19th century.

Astronomy and planetary science are the study of objects ... view of a three-million-year-old planet with a one-week orbit. A model for the formation of our Solar System proposes that its ...

The Planetary Boundaries framework is a pivotal tool for tackling the climate crisis and safeguarding humanity's future on Earth. For the first time, the full story of the Planetary Boundaries is now ...