The Earth might not have always been a sphere! Scientists think planet may have originally ...
Most planets that we can observe are spheres, or at least are very close to being spheres. The Earth is flattened at its ...
BGR1 个月
Astronaut on the ISS captures image of dazzling blue spheres floating above Earth
An astronaut on the International Space Station captured mysterious blue spheres in the sky last year. NASA’s Earth Observatory shared the photo last year, as well, shortly after it was taken.