Monash University researchers have extended Descartes’ Circle Theorem by finding a general equation for any number of tangent ...

Fans aren’t exactly jumping for joy at Sean O’Malley getting an immediate rematch with bantamweight champion Merab Dvalishvili in the main event of UFC 316.

Venus could make a brief appearance this weekend as it passes between the Earth and the sun. Just be warned: It won't be easy to spot in the sun's glow, according to astronomers. The orbit Venus ...

It could be two planets, or a planet and the sun. An inferior conjunction of Venus happens when the planet swings between the sun and Earth. Such an alignment happens about every 19 months because ...

The average menstrual cycle has about 28 days between periods, but it's normal to have a cycle that lasts anywhere from 21 to 35 days. If the egg that's released during ovulation is not fertilized, ...

Pain between the shoulder blades is often due to muscle strain, which may result from lifting heavy objects, poor posture, or overuse. Other health issues can cause upper back pain, though, including ...

It Takes Two is by far one of the most unforgettable ... are featured here as a litany of interactive obstacles stand between you and your goal. You’ll never guess what the overriding focus ...