A one-of-a-kind star found to change over decades

Astronomers studying the unique binary star system AR Scorpii have discovered the brightness of the system has changed over the past decade. The new evidence lends support to an existing theory of how the unusual star emits ...

Apple unveils $999 iPhone X, loses 'home' button

"One more thing." With that phrase, Apple paid homage to its late co-founder Steve Jobs for the 10-year anniversary of the iPhone on Tuesday when it unveiled its latest—and, at $999, its most expensive—new version of ...

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