3 things to know today

Cinco de Mayo

May 5 marks the first victory of the Mexican army over the French in 1862. It is celebrated in the U.S. with parades, folklorico dancing and music to celebrate Mexican heritage.

Really? It isn’t a problem?

Scientists said Friday that the Arctic will remain on thinning ice and climate change is expected to start affecting the Antarctic, according to The Associated Press.

Fat stays forever

Researchers in Sweden say the number of fat cells stays the same year after year throughout adulthood and weight loss or gain affects only the amount of fat stored in the fat cells, according to The New York Times.