A trio of triangle teasers

The ancient Greek geometer Euclid presented a list of five axioms he held to be self-evidently true. They are (or are equivalent to):

You can draw a line between any two poin…

Dazzling image shows galaxy more than 4bn light years away, whose starlight has been bent due to gravity

The Euclid space telescope has captured a rare phenomenon called an Einstein ring that reveals …