Space is the boundless three-dimensional extent in which objects exist 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 a boundless four-dimensional continuum known as spacetime. In mathematics, "spaces" are examined with different numbers of dimensions and with different underlying structures. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. Read more on wikipedia
Scientists observe mysterious, floating hills in Pluto's "Sputnik Planum" region, which is also known as Pluto's heart.
NASA's Juno spacecraft has adjusted its maneuvers and is heading toward Jupiter to study the gas giant's origin, structure and its atmosphere.
A small asteroid, '2013 TX68,' will pass by the Earth on March 5 at a distance of 9 million miles to about 11,000 miles.
The Cassini Spacecraft has captured a remarkable image of Saturn and its methane abundance.
New study finds that the phases of the moon only "slightly" affects rainfall amounts.
Researchers found that Pluto's surface has greater amounts of water ice than previously thought.
Hubble has captured the image of a rare spiral galaxy with intense radio jets spilling out of its center.
Colorful animation shows a flight over dwarf planet Ceres, where surface materials are shown in shades of blue.
Study finds that the moon was formed from a 'head-on collision' between the Earth and a "planetary embryo" called Theia.
A new study is shedding light on the origin of the universe and examines the symmetry and asymmetry between space and time together.
Researchers found that a giant gas cloud known as the "Smith Cloud" is heading for the Milky Way's disk.