Alain Picard 
IN BRIEF Expansion of the Universe: phenomenon of galaxies moving away from each other. Observation by Edwin Hubble in 1929 on distance and redshift. Dynamic spaces: influence of gravity on space-time. Speed of expansion and its impact on cosmology. Origin of the Universe: about 13.8 billion years ago. Big Bang Theory and its implications for … Read more
IN BRIEF Big Bang: Cosmological model on the origin of the Universe. Describes the evolution of the Universe from a dense and homogeneous state. Observational evidence, such as the cosmic microwave background. Explained by the abundance of primordial helium. Diverse data sources corroborate the theory. Scientific consensus on the birth of the Universe from the … Read more
IN BRIEF Scientific advances : Revolutionizing our understanding of the universe. Expansion of horizons : Discoveries that redefine our place in the cosmos. Inventions and discoveries : Technical innovations boosting astronomical observation. Influence of Galileo : Establishment of rigorous scientific methods. The Copernican system : Simplification of astronomical models, changing the perception of Earth. Consequences … Read more
IN BRIEF Contemplation of the clear night sky Learning to navigate in the sky Purchasing a pair of binoculars to get started Choosing a telescope suited to your needs Understanding constellations and stars Exploring different types of observation Astronomical photography to capture views Basic concepts and essential equipment to start Regular observations and practice to … Read more
IN BRIEF Astrobiology: study of extraterrestrial life. Analysis of geochemical and biochemical factors conducive to life. Search for habitable exoplanets in the universe. History: from antiquity to the present, a continuous quest. Scientific challenges to detect life elsewhere. Impact of discoveries on our understanding of life on Earth. Astrobiology is a fascinating discipline that explores … Read more
IN BRIEF Past: Apollo missions (1969-1972) and the first steps of man on the Moon. Cold War Period: Competition between the United States and the USSR for space exploration. Recent Exploration: Sending satellites and robotic missions by various countries. Future: Projects for human colonies and sustainable exploration on the Moon. Futuristic Goals: French astronauts expected … Read more
IN BRIEF 1957: Launch of Sputnik 1, the first artificial satellite by the USSR. 1961: Sending of the first living being into space, the chimpanzee Ham. 1969: The Apollo 11 mission allows the first humans to walk on the Moon. 1400 orbits around the Earth for Sputnik 1 before its destruction. Exploration of planets through … Read more
IN BRIEF Main objectives: Exploration of the Moon, Jupiter, Mars, and beyond. Voyager 1: The farthest space probe that has transmitted data about interstellar space. Hubble: The first telescope to study the atmosphere of exoplanets. Galileo: A landmark mission around Jupiter, providing images and atmospheric data. Crucial discoveries: Identification of compounds such as sodium in … Read more
IN BRIEF Cosmological Model: Mathematical description of the history of the Universe. Friedmann Equations: Foundation of modern cosmological models. Cosmology: Study of the structures and evolution of the Universe. Quantum Physics: Basis of particle and matter theories. Hubble Constant: Measurement of the expansion of the Universe. Differential and Integral Calculus: Key mathematical tools in celestial … Read more
IN BRIEF Solar Wind: flow of particles ejected from the Sun. Origin: comes from the solar corona. Plasma: fills the heliosphere up to 100 astronomical units. Solar Storms: caused by clusters of sunspots. Earth’s Magnetic Field: protects Earth from ionized particles. Auroras: result from the interaction between solar wind and Earth’s atmosphere. Nuclear Reactions: source … Read more