somabec

⚠️ This book is written in French.How old is the Universe? How was it born? What is dark matter? Are the laws of physics universal? Is there life o...

⚠️ This book is written in French.A very complete book offering the tools needed to practice amateur astronomy, from naked-eye observation of the s...

⚠️ This book is written in French.In this fully updated edition, each event is explained and illustrated with a magnificent image. The greatest sci...

⚠️ This book is written in French.Of all the celestial bodies visible in the sky, comets hold a special place, thanks to a spectacular appearance u...

⚠️ This book is written in French.Who has never seen a shooting star in the night? These messengers from space most often burn up in the air or van...

⚠️ This book is written in French.Organized into 10 lessons, with mathematical appendices, computer-based illustrations and 5 openings onto modern ...