Tag Archives: black hole

today’s birthday: Stephen Hawking (1942)


Stephen Hawking (1942)

Despite suffering from a neurodegenerative disease that has made it impossible for him to communicate without a voice synthesizer or to move around without a wheelchair, Hawking is one of the world’s top theoretical physicists. While most experts in his field are little known outside the scientific community, Hawking has taken pains to make his work accessible to the layperson and, in so doing, has become a household name. What is the title of his bestselling book on cosmology? More… Discuss

today’s birthday: Subrahmanyan Chandrasekhar (1910)


Subrahmanyan Chandrasekhar (1910)

For his contributions to the knowledge of the evolution of stars, Indian-American astrophysicist Subrahmanyan Chandrasekhar shared the 1983 Nobel Prize in Physics. His work advanced the understanding of white dwarfs, supernovas, neutron stars, and black holes. He determined the maximum mass of a stable white dwarf—about 1.44 solar masses, the Chandrasekhar limit—beyond which a star will ultimately collapse and become a neutron star or black hole. Who else in his family was a Nobel laureate? More… Discuss

More Mystery Holes Appear in Siberia


More Mystery Holes Appear in Siberia

Two more mysterious craters have cropped up—or, perhaps more accurately, down—in an isolated region of Siberia north of the Arctic Circle. Earlier this month, the first such crater, nicknamed the “Yamal black hole” for its location on the Yamal peninsula, was discovered in the region. The area is rich in natural gas, leading to speculation that the holes are the result of underground gas explosions. However, this is not the only theory. Meteorites, stray missiles, and even aliens have all been cited as potential causes for the mysterious craters. More… Discuss

From ProPublica_-_The NSA Black Hole – 5 Basic Things We Still Don’t Know About the Agency’s Snooping


From ProPublica_-_The NSA Black Hole - 5 Basic Things We Still Don’t Know About the Agency’s Snooping

From ProPublica_-_The NSA Black Hole – 5 Basic Things We Still Don’t Know About the Agency’s Snooping (click to access report)