A group of Flat Earth believers recently traveled to Antarctica, expecting to see the sun go down, as it would on the disc.

The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because ...

A group of Brazilian researchers has presented an innovative proposal to resolve a decades-old debate among theoretical ...

In addition to being observable and measurable, learning outcome statements have to focus on student action. They are about students showing what they have learned, not about the instructor describing ...

Objects and materials can be grouped in different ways depending on the properties used to group them. NGSS 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of ...