Welcome!

How did the Universe begin? This question has occupied humanity for millenia. Whilst we have not yet answered this question, modern cosmology has taken us closer to it. This website describes how scientists working in the Simons Observatory collaboration are trying to advance our understanding of this fascinating area!

The Simons Observatory is going on tour! From the 30th of June 2026 to the 5th of July 2026 the Simons Observatory will be at the Royal Society's Summer Science Exhibition. Please return nearer the event to find more details on these ideas!

Simons Observatory Small Aperture Telescope

Introducing the Simons Observatory

 Cosmic microwave background map

What is the cosmic microwave background (CMB)?

Coming soon!

 Simons Observatory telescope hardware

How do we measure the CMB?

Coming soon!

 Measurement of the cosmic microwave background

How do we learn about the properties of the Universe from the CMB?

Coming soon!

 Royal Society Summer Science Exhibition exterior

Find out more on the Royal Soicety Summer Science Exhibition
Royal Society Summer Science Exhibition banner