"Possible Supernova: Safety Concerns for Observing Betelgeuse Through Telescopes"

Betelgeuse, the red giant star in the constellation Orion, could go supernova in the next few decades, according to a new study. The star has entered the carbon fusion phase of its life, which only lasts on the scale of a hundred years for a star that size. Meanwhile, a pictorial guide to computer history shows machines going back to the 1940s, and an online converter helps convert metric drill sizes to fractional and letter-size drills. Finally, One Wilshire Boulevard, a dumpy 1960s skyscraper in Los Angeles, is home to some of the most expensive real estate in the United States as it houses the infrastructure for major telecom carriers and data centers for big players like Amazon, Google, and Netflix.