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As far as humans can tell, space is infinite; it has no end or borders. Scientists believe that space will always seem infinite to humans for two reasons. First, our investigation of space has never found an edge (or any indications of an edge). Second, measurements show that space is expanding fast


Rather than being composed of anything, outer space is loosely defined as the void between the planets, stars and other objects in the universe. While not a perfect vacuum, scientists consider outer space to be a hard vacuum, with a pressure level close to zero. Nevertheless, space is not completely


Space-time is a mathematical and physical construct that explains how space and time interact; the three physical dimensions and one time dimension combine to create the four-dimensional nature of the universe. Space-time resulted from Albert Einstein's work on relativity.


Science for kids, specifically elementary aged kids, is a general introduction to basic scientific concepts. It is the foundation for further scientific development and experimentation.


Advocates for the study of social sciences contend that studying the discipline is valuable because it serves as a framework for understanding how the findings of the so-called pure sciences affect society. While the pure sciences address issues such as medicine and energy allocation, social science


Science is the methodical process in which humans observe and experiment in different fields of study to gain evidence for a clearer understanding of the world. Humans then use science to apply to technology practices. Technology is used through process and design to improve the quality of our lives


In science, speed is defined as the total distance traveled divided by the total time it took to travel that particular distance. Speed is dependent on the amount of time that it takes a person or object to move toward something.


The first person to travel to space was the Russian, Yuri Gagarin in 1961. Gagarin orbited Earth one time before re-entering the atmosphere and successfully returning to land. The entire trip took 108 minutes.


In science, mass is the amount of matter an object has. Newton's second law says that mass is the property of matter that determines the force required to impart a given acceleration to an object.


The science of matter is called chemistry. It is the study of matter, chemical reactions, compositions, structures and properties. Chemistry is a form of natural science.