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National and district-level data confirm an alarming decline in student test scores over the past decade and a half.

Last month, OpenAI announced that its latest version of ChatGPT had solved a major math problem, one that had stumped experts ...

Get your timer out and see whether you can remember the golden rule from grade school math class.

At the 24% bracket, a portfolio kicking off $50,000 a year in ordinary-income distributions hands $12,000 to the IRS every ...

The nation’s official advocate for children’s books says most of them are “crud.” But matters of literary quality don’t explain why kids aren’t reading.

Little progress had been made in solving Ramsey problems since the 1930s. Now, researchers have found the answer to r(4,t), a longstanding Ramsey problem that has perplexed the math world for decades.

Add Yahoo as a preferred source to see more of our stories on Google. A Delta Air Lines Airbus. (Saul Loeb/AFP via Getty Images) Delta is making a change to how it operates — but it may not impact ...

Delta Air Lines canceled hundreds of flights over a weekend due to crew scheduling issues. An internal memo revealed that outdated technology and processes for pilot scheduling are a primary cause.

It’s B.Y.O. snacks for thousands of Delta passengers. Starting May 19, Delta Air Lines will no longer offer food and beverage service on 450 daily flights. The removal of in-flight meals, snacks or ...

Sometimes it's hard to come by a second pack of pretzels — especially if you never get a first. Delta Air Lines announced a significant upcoming change to its food and beverage policy. Passengers on ...

Most travelers flying less than 350 miles on Delta will soon have to go without free coffee and cookies, but the carrier is adding service to longer flights. By Christine Chung Craving coffee or a ...