A viral image on Reddit challenged viewers to spot a plane mid-flight in the sky, a task that's a lot trickier than it sounds. The photograph showcased some concrete blocks in what appears to be ...

Have you got a sharp eye? Put your vision to the test by trying this puzzle, which asks you to spot the plane in the sky. As aircraft tend to be huge, you shouldn't think it would be that difficult.

An annotated night sky map showing the planets' positions ... This is due to the ecliptic plane, the path along which the planets orbit the sun. This is a rare opportunity to witness a stunning ...