In our roundup of travel stories this week: a man recreates his father’s round-the-world bicycle trip, a luxury yacht that ...

There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by them to communicate their existence, for example, through radio broadcasts ...

Lurking some nine billion light years away from Earth is what appears to be a so-called cosmic megastructure in the shape of an enormous ring. It’s so large that its existence should be impossible, ...

Let's just call it the alien megastructure that wasn't. More than 100 researchers have released a study showing that the mysterious star KIC 8462852, better known as Tabby's Star, is almost certainly ...

A megastructure found in the Baltic Sea may represent one of the oldest known hunting structures used in the Stone Age — and could change what’s known about how hunter-gatherers lived around 11,000 ...

The hunt for an alien megastructure in 2015 wasn't totally fruitless. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the ...

The hits keep on coming for those who were hoping that humanity had found some kind of “alien megastructure” orbiting the star KIC 8462852, a.k.a. “Tabby’s Star,” in the constellation Cygnus. It turns ...

The mystery of Tabby’s Star deepens after researchers recorded one of the most dramatic dips in its brightness yet. Tabby’s Star, or KIC 8462852, has been known to astronomers for hundreds of years, ...

Imagine that you roll out of bed onto a living fungus floor. The walls and ceiling — heck, the whole apartment building, down to the plumbing and electrical systems — are made of fungus too. Wood and ...