The universe our eyes can not see

This is not science fiction. It is what we call multimessenger astronomy and it has just opened a new window to explore the universe.

For centuries, our understanding of the universe relied on observing the light coming from stars and other objects in it. However, in recent years, we have learned to look at the sky with different eyes, using other cosmic messengers like neutrinos, gravitational waves, and cosmic rays.

Let me introduce you to this new era of multimessenger astronomy, including the unusual “telescopes” we have built in unique locations (such as the South Pole, deep underground, or under the sea) and some recent fascinating discoveries.