The protractor in the image below has been used to measure an angle of 110°. An acute angle is less than 90°, a right angle is exactly 90°, and an obtuse angle is between 90° and 180°.

A bright star within our Milky Way galaxy photobombed a beautiful new image of a distant galaxy with "patchy" spiral arms.

We remain fascinated by the Titanic tragedy and now, a new digital replication of the sunken ship provides additional clues ...