The strange behavior of Tabby’s Star, or KIC 8462852, has inspired modern astronomy’s wildest guessing game, with explanations ranging from aliens to sunspots. Writer Stephen Petranek got Tabby herself to assess the competing ideas.
Space archaeologist Sarah Parcak highlights 4 thrilling recent finds — and shows us how we can safeguard ancient sites with GlobalXplorer, her new online citizen science platform.
Last Mile Health has expanded healthcare access to the most remote regions of Liberia. Raj Panjabi, the nonprofit’s founder and winner of the 2017 TED Prize, looks back at how his team handled the Ebola outbreak — and how it can help them build a healthier future for their country and us all.
It’s one thing to read about segregation and the Civil Rights movement of the 1960s in books. But history comes to life when you hear from the people who were on the front lines.
Robert Fischell invented the rechargeable pacemaker and the implantable insulin pump — not to mention created the precursor to GPS. The 87-year-old shares a peek into his creative process.
You don’t “find your calling,” you fight for it — and other lessons from people who found their passion (sometimes late in life).
The Vikings described a place called Vinland — a “land of wine,” bursting with berries. But where, exactly, was it? Space archeologist Sarah Parcak shares a step-by-step look at how her team used Norse texts and satellite imagery to search in eastern Canada.