Professor Brian Cox has said that if an advanced alien civilisation had built a megastructure to harness energy from its star, it would not be "horrendously surprising". The physicist was speaking ...

This image of the Andromeda Galaxy is largest Hubble image ever assembled. NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson University of Washington, the PHAT team, and R. Gendler It is true ...

Since 2015, a star that can be seen mysteriously brightening and dimming has captured the imagination of scientists and conspiracy theorists alike. Many explanations have been offered for the ...

The imaginary constructions of science fiction fill us with awe at their alien vastness. Which have you explored, and what was the most overwhelming?

The object is casting a giant black shadow in an area which was believed to be underwater millions of year ago ALIEN hunters are getting excited about this huge mysterious sphere on Mars captured by a ...