The recent discovery of a binary system containing an extremely rare object, the most massive black hole (apart from SgrA*) ever detected in our Galaxy, calls into question the models for the formation of these bodies.
As opposed to black holes, white holes are thought to eject matter and light while never absorbing any. Detecting these as yet hypothetical objects could not only provide evidence of quantum gravity but also explain the origin of dark matter.
On 24 September, 2023, material collected three years earlier from the surface of asteroid Bennu was successfully returned to Earth by the OSIRIS-REx mission. Some thirty laboratories around the world, including several CNRS research teams, are now busy...
Earth's smaller sister planet, Mars, may have seen the emergence of life in its early history. To be certain, NASA's rovers Curiosity, launched ten years ago, and Perseverance, which landed...
Launched in 2016, the MICROSCOPE satellite has confirmed with unprecedented precision the equivalence principle, which lies at the heart of Einstein's general theory of relativity. Two...