One of the more interesting aspects of the Pearl Harbor attack were the efforts of the US Navy to salvage and return to duty the ships sunk or so heavily damaged that they were thought to be irrepa…

Source: Salvaging the Fleet: Salvage Efforts after the Attack on Pearl Harbor

Astronomers have found the first known ‘middleweight’ black hole. Before it was found, astronomers had good evidence for only supermassive black holes — ones a million to a billion times the mass of the Sun — and ‘stellar mass’ ones, three to thirty times the mass of the Sun.

Source: Belching black hole proves a biggie: First known ‘middleweight’ black hole

Billions of years ago in the heart of a distant galaxy, a monster black hole shredded a passing star and emitted X-rays. Now astronomers are using X-ray echoes to study a newly awakened black hole for the first time.

Source: X-ray echoes of a shredded star provide close-up of ‘killer’ black hole

Utilizing the Atacama Large Millimeter Array, one of the most powerful telescopes in the world, researchers have peered into the feeding habits of a supermassive black hole.

Source: Astrophysicist probes theory of black-hole accretion

A team of researchers has developed the first scalable method to identify different subtypes of neurons in the human brain. The research lays the groundwork for ‘mapping’ the gene activity in the human brain and could help provide a better understanding of brain functions and disorders, including Alzheimer’s, Parkinson’s, schizophrenia and depression.

Source: Human brain houses diverse populations of neurons, new research shows

A clandestine government surveillance program that has been operating around the Bay Area is being exposed.

Source: Hidden Microphones Exposed As Part of Government Surveillance Program In The Bay Area