By Niall McCracken BBC News IS 1 hour ago To play this content, please enable JavaScript, or try a different browser video caption, Local historians are...
Tag - giant
The collision of two supermassive block holes emits a gravitational wave in this artist’s illustration.Credit: Aurore Simonnet for the NANOGrav...
The pull of gravity is uniform on Earth, but our planet is not a uniform sphere. It is covered in lumps and bumps, with geology of varying density pulling on...
