Seventeen miles of underground tunnel, thousands of superconducting magnets, and protons whipped to a fraction below light speed have given the Large Hadron Collider a reputation that borders on myth.
On September 14, 2015, a signal arrived on Earth, carrying information about a pair of remote black holes that had spiraled together and merged. The signal had traveled about 1.3 billion years to ...
It takes more than a galaxy merger to make a black hole grow and new stars form: machine learning shows cold gas is needed too to initiate rapid growth -- new research finds. When they are active, ...