Whois & Analysis for scienceatom.com

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.

Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms.

Atoms are extremely small; typical sizes are around 100 picometers (a ten-billionth of a meter, in the short scale).

Science News is an American bi-weekly magazine devoted to short articles about new scientific and technical developments, typically gleaned from recent scientific and technical journals.

Science News has been published since 1922 by Society for Science & the Public, a non-profit organization founded by E.

W.

Scripps in 1920.

American chemist Edwin Slosson served as the publication's first editor.

From 1922 to 1966, it was called Science News Letter.

The title was changed to Science News with the March 12, 1966 issue (vol.

89, no.

11).

Scientific method is an empirical method of knowledge acquisition, which has characterized the development of natural science since at least the 17th century, involving careful observation, which includes rigorous skepticism about what is observed, given that cognitive assumptions about how the world works influence how one interprets a percept; formulating hypotheses, via induction, based on such observations; experimental testing and measurement of deductions drawn from the hypotheses; and refinement (or elimination) of the hypotheses based on the experimental findings.

These are principles of the scientific method, as opposed to a definitive series of steps applicable to all scientific enterprises.

Outer space, or just space, is the expanse that exists beyond the Earth and between celestial bodies.

Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays.

The baseline temperature, as set by the background radiation from the Big Bang, is.

The plasma between galaxies accounts for about half of the baryonic (ordinary) matter in the universe; it has a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvins; local concentrations of this plasma have condensed into stars and galaxies.

Studies indicate that 90% of the mass in most galaxies is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces.

Observations suggest that the majority of the mass-energy in the observable universe is a poorly understood vacuum energy of space, which astronomers label dark energy.

Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.