Related topics: international space station , shuttle , space shuttle discovery , satellite , nasa
Space
hideSpace is the boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of the boundless four-dimensional continuum known as spacetime. In mathematics spaces with different numbers of dimensions and with different underlying structures can be examined. The concept of space is considered to be of fundamental importance to an understanding of the universe although disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework.
Many of the philosophical questions arose in the 17th century, during the early development of classical mechanics. In Isaac Newton's view, space was absolute - in the sense that it existed permanently and independently of whether there were any matter in the space. Other natural philosophers, notably Gottfried Leibniz, thought instead that space was a collection of relations between objects, given by their distance and direction from one another. In the 18th century, Immanuel Kant described space and time as elements of a systematic framework which humans use to structure their experience.
In the 19th and 20th centuries mathematicians began to examine non-Euclidean geometries, in which space can be said to be curved, rather than flat. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean space provides a better model for explaining the existing laws of mechanics and optics.
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News tagged with space
Prof gets messages from space
Space & Earth / Space Exploration
Dec 08, 2009 |
4.3 / 5 (6) |
0
(PhysOrg.com) -- Barbara Frisken received several messages from outer space this year on her answering machine.
RIT astronomer mines Spitzer Space Telescope data for massive starbursts
Dec 08, 2009 |
4.3 / 5 (3) |
0
Understanding the evolution of galaxies is one of the biggest questions confronting astronomers today. Looking at distant astronomical objects gives scientists important clues to the origins of the Milky Way Galaxy and other ...
Life on Mars theory boosted by new methane study
Space & Earth / Space Exploration
Dec 08, 2009 |
4.9 / 5 (27) |
11
Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow in Earth an ...
Hubble's Deepest View of Universe Unveils Never-Before-Seen Galaxies (w/ Video)
Dec 08, 2009 |
4.6 / 5 (33) |
28
(PhysOrg.com) -- In 2004, Hubble created the Hubble Ultra Deep Field (HUDF), the deepest visible-light image of the Universe, and now, with its brand-new camera, Hubble is seeing even farther. This image was ...
NRL's MISSE7 launched aboard STS-129
Space & Earth / Space Exploration
Dec 07, 2009 |
4 / 5 (1) |
0
The Materials on the International Space Station Experiment (MISSE) 7, designed and built by the Naval Research Laboratory (NRL), launched aboard STS-129 on November, 16, for transport to the International ...
Virgin Galactic unveils commercial spaceship
Space & Earth / Space Exploration
Dec 07, 2009 |
4.6 / 5 (8) |
2
SpaceShipTwo (SS2) and its mothership, VMS Eve (WhiteKnightTwo) herald a new era in commercial space flight with daily space tourism flights set to commence from Spaceport America in New Mexico after test ...
Japan's 'space beer' sparkles among drinkers
Space & Earth / Space Exploration
Dec 07, 2009 |
3.2 / 5 (6) |
0
A Japanese brewer has come up with a beer that's truly out of this world -- one made with barley grown from a line of seeds that once orbited the Earth aboard the International Space Station.
NASA to launch sky-mapping spacecraft
Dec 06, 2009 |
5 / 5 (4) |
3
(AP) -- NASA's latest space telescope will scan the sky in search of never-before-seen asteroids, comets, stars and galaxies, with one of its main tasks to catalog objects posing a danger to Earth. The sky-mapping ...
Steering the Ares Rockets on a Straight Path
Space & Earth / Space Exploration
Dec 04, 2009 |
5 / 5 (1) |
1
(PhysOrg.com) -- The Ares I-X rocket stood more than 325 feet tall on the launch pad at NASA's Kennedy Space Center, Fla. Spectators watched in awe as its massive solid rocket motor blazed to life with a thunderous ...
Spitzer Unveils Biggest Milky Way View at Adler Planetarium
Space & Earth / Space Exploration
Dec 04, 2009 |
5 / 5 (2) |
3
(PhysOrg.com) -- The world's largest image of our Milky Way galaxy, taken by NASA's Spitzer Space Telescope, went on display this week at the Adler Planetarium in Chicago.
NASA puzzled why parachutes failed in rocket test
Space & Earth / Space Exploration
Dec 03, 2009 |
3.4 / 5 (5) |
3
(AP) -- NASA still isn't sure why two parachutes failed during a test flight of its prototype moon rocket just over a month ago.
Artificial Intelligence Shuffles Schedules, Cuts Patients' Wait Times
Dec 03, 2009 |
5 / 5 (2) |
0
(PhysOrg.com) -- Some of the same artificial intelligence (AI) underlying NASA’s Hubble Space Telescope is now streamlining patient care at Strong Memorial Hospital, helping radiologists and technologists ...
Galileo satellite platform tests under way
Space & Earth / Space Exploration
Dec 03, 2009 |
4 / 5 (2) |
0
(PhysOrg.com) -- The engineering model of the first Galileo satellites has completed platform integration tests at the Thales Alenia Space facility in Rome. The platform is now undergoing functional testing. ...
Astronauts to taste 'space sushi'
Space & Earth / Space Exploration
Dec 03, 2009 |
5 / 5 (1) |
0
US astronaut Timothy Creamer said on Thursday he was impatient to taste "space sushi" courtesy of his Japanese crewmate after they arrive on the International Space Station (ISS) later this month.
STPSat-1 successfully completes extended mission
Space & Earth / Space Exploration
Dec 02, 2009 |
5 / 5 (1) |
0
The STPSat-1, built for the Department of Defense (DoD) Space Test Program (STP) and operated by the DoD STP for the first year then transitioned to NRL for the last 16 months, was decommissioned on October ...
