Space has been an interest for philosophers and scientists for much of human history, and hence it is difficult to provide an uncontroversial and clear definition outside of specific defined contexts. Disagreement exists on whether space itself can be measured or is part of the measuring system. (See Space in philosophy.) The term is also used somewhat differently in different fields of study. Many fields use an operational definition in which the units of measurement are defined.
In mathematics, a space is a set, with some particular properties and usually some additional structure. It is not a formally defined concept as such, but a generic name for a number of similar concepts, most of which generalize some abstract properties of the physical concept of space.
More on [ Space ]

Air Academy Summer Youth Camp - Experimental Aircraft Association's resident program for aviation minded boy and girls age 12-18 offers hands-on aviation and leadership activities. Located in Oshkosh, Wisconsin. Program details, dates, rates, and applications.
Meta Description: [ EAA Young Eagles is Youth's Portal to Aviation! Photos, Fun, Games, Facts, Ask the Expert & much more are available at your finger tips. ]
Astro Camp - One to six-day resident summer programs for students who have finished 4th to 9th grade. Operated by the Ogden Utah City School District. Camp descriptions, staff profiles, FAQ, dates, and rates.
Meta Description: [ Astro Camp is a space and science program for students 4th through 9th grades. Help your child gain a lasting enthusiasm for science in their lives. ]
Christa McAuliffe Space Education Center - Alpine School District's Space Education Center in Utah offering space camps and field trips for students from grade 5 to grade 8.
Meta Description: [ The Chrisa McAuliffe Space Education Center, going where no classroom has gone before! ]
Cosmodome - Space Camp - Offers a unique educational adventure designed to stimulate participants' interest in space science and sciences in general.
CTIKids.com - Five-day computer technology based summer camp programs in Potomac and Montgomery County, Maryland.
Hab1.com - Electronic community providing information and a forum for past, present, and future attendees of U.S. Space Camp programs.
HighBridge Hills Northern Lights Educational Center's Astronomy Camp - Offers hands-on astronomy instruction in separate programs for kids 7-14, families, and adults. Located in Highbridge, Wisconsin. Brochure, astronomy resources, FAQ, dates, and rates.
Meta Description: [ The nation's first Astronomy Camp/Campground for kids, families & adults. Astronomy camping at it's best. 15 astronomer led camp sessions each summer.200 public sites, dark skies great for observing! ]
IAYC - International Astronomical Youth Camp - Annual European space camp for amateur astronomers aged 16 - 24. During three weeks 70 participants work together in small units on research projects relating to astronomy and science.
Space Camp - A five-day program with activities including simulated space shuttle missions, training simulators, and lectures on space exploration.
Virginia Space Flight Academy - Five-day, residential summer camps for students ages 11 to 15 interested in learning about the science and engineering of rockets and space flight. Held at the NASA Wallops Flight Facility near Chincoteague Island, Virginia.
Meta Description: [ Space Flight Adventure Camp, presented by The Virginia Space Flight Academy, at the Wallops Flight Facility near Chincoteague Island, Virginia, offering one-week camps for students interested in various aspects of space flight and rockets. ]
| Reports about space travels, exploration of the cosmos & latest discoveries, produced in cooperation with ESA. | |
| Next Video | |