I am a professor of physics at the Institute of Theoretical Physics in Heidelberg, Germany. My area of research is Cosmology and Astrophysics. Currently I am working mainly on topics related to Dark Energy, Large Scale Structure, Cosmic Microwave Background, Statistics.
What happens if two of the greatest enigmas of our Universe, black holes and dark energy, are shown to be actually one and the same…
Edizioni Il Mulino La scienza sembra ormai disporre delle leggi fondamentali dell’universo, fondate sulla gravitazione di Einstein e sulle teorie quantistiche, e nessun fenomeno appare…
When you do cosmology, you are either linear or non-linear. That means, either you try to be general, not confined to a particular viewpoint, but…
Science is all about models of reality. Nature is way too complicated to be studied in every single detail and science begins when we find…
Dark matter, needed to explain the large-scale structure of the Universe, is supposed to be composed of elementary particles that interact mostly or exclusively via…
Un libro divulgativo di cosmologia, da poco pubblicato dall’editore Il Mulino. Qui un’intervista sul libro. Anche su amazon.
What keep stars and gas together in a galaxy? The force of gravity, of course. But what originates this gravity? Since the 70s, we know…
Black holes are normally thought to be the end state of heavy stars. When no force can resist the pull of gravity, matter collapses in…
Cosmology is the science of large things: galaxies, clusters of galaxies, the Universe itself. Gravity propagates freely at very large distances (actually, infinite distances) and…
Some time ago I started working on some non-local theories of the Universe (see this post). The idea is that at least some of the…
An important referendum will take place on December 4th in Italy. We will have to express our opinion on a general modification of the Constitution,…
There are fundamental principles in physics that some conservative physicists think should never be questioned. One of these principles is the principle of locality, which…
It may appear weird, but one of the basic activity of theoretical cosmology is not to analyse real observational data, but rather to predict what…
Every child knows: there is nothing more dangerous than ghosts! Since children never lie, we also have to be extremely careful with theories that predict…
I don’t know whether this is true (nor why it should), but the curious German saying giving the title of this post was also the…
Euclid is a telescope satellite that will be launched by the European Space Agency in 2020. Its scope is to create the largest ever three-dimensional…
Gravity is everywhere. This is good, because it means we can test it in so many different environments. For centuries, gravity has been tested with…
Sometimes one needs to take a little tour outside the magic world of cosmology to meet real life. During one of these excursions, we thought…
A very nice publication of the Italian National Institute of Nuclear Physics (INFN), about dark matter, dark energy, strings, supersymmetry etc for the general public, …
Standard Einsteinian gravity contains a wave/particle called graviton that propagates the force in space, just like the photon propagates electrodynamics in space. The graviton is…
Luca Amendola