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

Ever since NASA discovered water on Mars, where we could be heading to within the next 20 years, it seems anything is possible, including the existence of aliens. You read the last part right.

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 ...

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, ...

How do you explain an outer space discovery that confounds even astronomers? Blame it on aliens. At least that often seems to be the first reaction when such mysteries arise. KIC 8462852 was first ...

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 ...

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 ...

New observations of perhaps the weirdest star scientists know have finally put to rest one of the most engaging hypotheses to explain its wild behavior: that aliens had built a giant structure around ...

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 ...