Mathematics and computing is the study and analysis of abstract concepts, such as numbers and patterns. Mathematics is the language of choice for scientifically describing and modelling the universe ...

Astronomy and astrophysics are the study of objects and phenomena that are found beyond our solar system. This combines theoretical simulations and observation with both terrestrial and ...

Brittany Brown is a full-time copywriter writing covering real estate and personal finance topics like budgeting, investing, credit cards, and more. She is currently working to become an accredited ...

Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. Suzanne is a content marketer, writer, and ...

Rheumatoid arthritis (RA) and lupus are autoimmune diseases. They result from your immune system mistakenly attacking your own body. With RA, your immune system mainly attacks your joints. That's also ...

A colon is used to give emphasis, present dialogue, introduce lists or text, and clarify composition titles. Emphasis—Capitalize the first word after the colon only if it is a proper noun or the start ...

On Thursday night, when 10 Democratic presidential primary candidates grace a Houston stage to debate the future of their party, they’ll all be hoping to differentiate themselves from their ...

Sarah Klein is a health writer, editor, and certified personal trainer with over a decade of experience in media. She has held editorial positions at LIVESTRONG.com, Health, Prevention, and The ...

WSJ Puzzles is the online home for America’s most elegant, adventurous and addictive crosswords and other word games.Read more about our puzzles. To reach us, email [email protected]. Tips for Playing ...