Dark Energy and Dark Matter. What is Dark Energy? What is Dark Matter? Why does it matter? I'd like you to explore the current state of knowledge about dark energy and matter. You should find out about the experimental observations that have led scientists to conclude that it exists. You are also going to investigate the theories that try to explain dark energy and matter. I have proposed this topic, precisely because scientists do not yet have the answers, so I want you to experience what science is like when it is new and there are different ideas and theories that compete with each other. I hope you enjoy your learning! https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy Task for this week: Read this article and write a post, with the questions that you want to answer over the next 10 weeks.
as we already know a neutrino, only with a rest mass greater than zero, is a candidate for dark matter. In the Gran Sasso laboratory Lucia Votano, the director of the laboratory, had announced "the OPERA experiment has reached its first goal: the detection of a tau neutrino obtained from the transformation of a muon neutrino, which occurred during the journey from Geneva to the Gran Sasso Laboratory." - meaning that there is deficiency in the standard model for particle physics because a neutrino must have a mass for this change to occur - said in 2010.
ReplyDeleteAn effort to determine the Dirac nature of the neutrino, called CUORE (Cryogenic Underground Observatory for Rare Events), is scheduled to begin in 2012. The detector will be shielded with lead recovered from an ancient Roman shipwreck, due to the ancient lead's lower radioactivity than recently minted leads. The artifacts are being given to CUORE from the National Archaeological Museum in Cagliari.