Earth's shadow has two main regions: the outer shadow, called the penumbra, and the inner shadow, known as the umbra. The ...

Eclipses don't happen at random — they arrive in pairs, on schedule, and 2026 brings two spectacular seasons to prove it.

Plenty of our childhoods had at least one math teacher who made the (ultimately erroneous) claim that we needed to learn to do math because we wouldn’t always have a calculator in our ...

The first solar eclipse of the year will occur on February 17, creating a “Ring of Fire” as the Moon partially covers the Sun ...