cosmic time

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Noun

cosmic time - the time covered by the physical formation and development of the universe

time - the continuum of experience in which events pass from the future through the present to the past

sidereal time - measured by the diurnal motion of stars

solstice - either of the two times of the year when the sun is at its greatest distance from the celestial equator

equinox - either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length

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They came to the conclusion after a five-year-long survey of 200,000 galaxies, stretching back seven billion years in cosmic time.

Dark energy 'expanding universe at accelerating speeds'

If you want to connect the dots, you need samples of galaxies that span very broad ranges" of cosmic time, he says.

Grappling with Galaxy Formation

Individual voids may have a blob-like asymmetry, with certain parts expanding faster than others, but combine enough voids and you can generate a statistical average, a "standard sphere." This generic void expands over cosmic time in a predictable way.

Into the void: the emptiest spaces of the universe may hold clues to cosmic mysteries

Another result is that a gradual decrease in the AGN fraction is seen with cosmic time since the Big Bang.

NASA scientists' breakthrough in determining hyperactivity of black holes

"The universe was remarkably consistent [in making stars] for a fairly large amount of cosmic time."

No beginning in sight for star formation

The Hubble constant in today's universe, and its changes through cosmic time, are the keys to knowing the universe's nature, history, and fate.

Hubble constant, dark energy refined

These instruments provide information on the number, brightness, colors, shapes, and star formation rates of galaxies over a huge span of cosmic time, beginning a few billion years after the Big Bang and continuing to the present.

After Hubble: the Next Generation: probing the final frontier

The high-speed jet is probably episodic and will live for only a few centuries, a blink of the eye on a cosmic time scale.

Sculpting cosmic hourglasses

Peering far back in cosmic time, the Hubble Space Telescope has spied a group of 18 diminutive youngsters that may represent the building blocks of a giant galaxy like the Milky Way.

Images hint at seeds of a giant galaxy

Unlike previous studies, which examined young stellar populations in galaxies at various epochs in cosmic time, Heavens's team studied present-day stellar populations in 96,545 nearby galaxies imaged by the Sloan Digital Sky Survey.

The peak of cosmic starbirth: star formation reached its zenith more recently than astronomers thought

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