"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those missing pieces were going to be." A secret population of hidden galaxies ...

Or interstellar space could just be too difficult to traverse, the distances too vast, the resources needed too great. Another theory is that there is some kind of "great filter" that prevents ...

Or interstellar space could just be too difficult to traverse, the distances too vast, the resources needed too great. Another theory is that there is some kind of "great filter" that prevents ...

But there is a big problem with many of these "so-called solutions," Wright said. They tend to assume that all the hypothetical kinds of aliens across the universe would all behave in the same way ...

Not only are stars producing complex organic matter, they are also ejecting it into interstellar space, the region between stars. Thus, exploding old stars are molecular factories capable of ...

What’s out there? We don’t know for sure, but the best space exploration games let you discover alien worlds, dodge supermassive black holes, or become an interstellar trucker. Dust off your ...

Related: Supermassive black hole at the heart of the Milky Way is approaching the cosmic speed limit, dragging space-time along with it The galaxy, called SDSS1335+0728, first called attention to ...

A team of astronomers at the Space Telescope Science Institute, working with one colleague from the University of St Andrews' Center for Exoplanet Science and another from the European Southern ...

We can't see dark matter, but scientists have made the largest map yet of the invisible material that helps make up the universe. Researchers used a dark energy camera and a large telescope to ...

Or interstellar space could just be too difficult to traverse, the distances too vast, the resources needed too great. Another theory is that there is some kind of "great filter" that prevents life -- ...