Stephen Hawking’s Ph.D. Thesis Crashes Cambridge Site After It’s Posted Online

Interest in “Properties of Expanding Universes” is at an all-time high: Stephen Hawking’s doctoral thesis of that name crashed Cambridge University’s open-access repository on the first day the document was posted online. The Cambridge Library made several PDF files of the thesis available for download from its website, from what it called a high-resolution “72 Mb” file to a digitized version that is less than half that file size. A “reduced” version was offered that … Continue reading Stephen Hawking’s Ph.D. Thesis Crashes Cambridge Site After It’s Posted Online

Scientists detect gravitational waves from a new kind of nova, sparking a new era in astronomy

Some 130 million years ago, in a galaxy far away, the smoldering cores of two collapsed stars smashed into each other. The resulting explosion sent a burst of gamma rays streaming through space and rippled the very fabric of the universe. On Aug. 17, those signals reached Earth — and sparked an astronomy revolution. The distant collision created a “kilonova,” an astronomical marvel that scientists have never seen before. It was the first cosmic event … Continue reading Scientists detect gravitational waves from a new kind of nova, sparking a new era in astronomy