Scientists spotted signs in late March of a rare hole forming and it was thought to be the result of low temperatures at the north pole. The ozone layer shields the Earth from most of the Sun's ...

Reader Jayant Bhalerao, a college physics instructor, found the story useful in class: “We will share it with our students, so that they can appreciate how ...

The Martian north pole points to the Cygnus constellation ... If you thought that was interesting, you might like to read about a second giant hole has opened up on the sun’s surface.