How to observe the origin of the Universe?
Audio 48:30
By: Caroline Lachowsky
51 mins
The entire Autour de la question team is very touched by the death of astrophysicist Cécile Renault.
To pay homage to her, we rebroadcast this program where she was our guest to try to answer the question: "
How to observe the origin of the Universe?"
"(Replay)
Publicity
Cécile Renault
was a brilliant
astrophysicist, researcher at the
Laboratory of Subatomic Physics and Cosmology in Grenoble
, responsible for processing time data from the high-frequency instrument of the Planck satellite.
She was also a great figure in the popularization of science, through her blog
Cosmologically yours
.
The
Planck project
aims to measure, with great precision, a certain radiation present in the Universe: fossil radiation. As the name suggests, this is the oldest radiation that has been emitted in the Universe. Its observation plays a crucial role in astrophysics because it allows to reconstitute, with precision, the content as well as a large part of the history of the Universe. This project should make it possible to better answer many questions: What is the age and shape of the Universe? What will be the future of the Universe, infinite expansion, implosion or otherwise? When did the Universe become transparent? When did the first stars and the first galaxies form? What are the forms of matter and energy that fill theUniverse? What mechanisms initiated the formation of galaxies?
In order to try to answer these questions, we received in April 2013 Cécile Renault.
The second part of this show can be (re) listened to right here.
Newsletter
Receive all international news directly in your mailbox
I subscribe
Follow all the international news by downloading the RFI application
google-play-badge_FR
Science benchmarks
On the same subject
Around the question
How to map the Universe?
Around the question
How to imagine the universe?