Astrophysicist and Scientific Director of the CEA Astrophysics Department
Space telescopes give us the opportunity to collect crucial data about the Universe, which are unobtainable and invisible from Earth.
Those observations provide us with more knowledge on the composition of space; for example, we now know that galaxies float in ‘plasma’, and that they can lose some of their own matter through galactic winds.
New ways of observing space can drive technical innovation. And some of them can be useful to everyday objects on Earth, such as our mobile phones.
CNRS Research Fellow at the Plasma Physics Laboratory (LPP)
Ejections from the surface of the sun, as well as solar winds, generate so-called ‘solar storms’ that impact the Earth’s magnetic outer layer (magnetosphere). • There are two types of solar wind events; “fast” winds that can reach 800 km/s, and “slow”, which move at speeds of 400 km/s.
The collision between these winds and the Earth’s atmosphere creates the polar auroras – or Northern Lights.
Scientists observe and analyse the properties of turbulence created in the atmospheres of planets to learn more about them.
Isabelle Dumé holds a PhD in physics. She collaborates with various scientific magazines and media, public and private institutions, and actors in higher education and research in France and worldwide.