Sentences with phrase «of average galaxies»

Not exact matches

Oh, so in the vast known Universe, which reaches out for 15 BILLION light years in all directions, with over 100 BILLION galaxies, containing an average of 100 BILLION stars each, with most of those stars now thought to have multiple planets orbiting around them, you can't imagine that there would be at least ONE little planet SOMEWHERE with the right conditions for life without divine intervention?

For example, the seeming unlimited number of galaxies (with each containing anywhere from an estimated 10 to 500 billion stars) and the precise order that exists within the universe, and the shear distance between stars (an average about 4.2 light years or about 25 trillion miles), has caused some to stop and look in awe.

We're an upstart species on tiny planet, in a boring solar system, in an average galaxy among millions of galaxies.

Each of these galaxies has about 100,000,000,000 stars, each star with, on average, a family of 5 - 10 planets circling it.

It means that the earth on which we live is not the center of the physical universe, but a comparatively small planet revolving round a very average - sized star, which in turn is but one of a hundred thousand million others forming the galaxy we call the Milky Way, and that part of the universe that our existing telescopes have so far penetrated contains about a hundred million star systems or nebulae, similar to our galaxy.

[25] Lemaitre's famous differential equation for cosmic expansion is: R [2] = C / R + 1 / 3AR [2]- k where R is the scale factor for cosmic expansion which is proportional to the radius of the universe when that radius has meaning; C > 0 and proportional to the average present - day density of non-relativistic matter in the universe; cosmological constant, - C [0] < A < C [0], which serves to create a cosmic repulsion that keeps galaxies from being drawn together by gravity when it is positive and adds to the attractive force of gravity when it is negative; and spatial curvature, k = -1,0, +1.

As it has countless times in the past and present, (the Holocaust, the Bubonic Plague, the World Wars, countless natural disasters, (floods, storms, earthquakes, etc), the Sky Myth was on vacation when, on a tiny speck of a planet, on a boring arm of the galaxy, in an average galaxy cluster among billions, a bad thing happened.

The shape of the universe can be determined by measuring the average density of matter within it, assuming that all matter is evenly distributed, rather than the distortions caused by «dense» objects such as galaxies.

A smooth - universe approximation is sensible, because when we look at the big picture, averaging over the structures of galaxy clusters and voids, the universe is remarkably uniform.

Dwarf galaxies can be found with fewer than 1,000 stars, in contrast to the Milky Way, an average - size galaxy containing billions of stars.

Intergalactic space (the space between galaxies) is filled with a tenuous gas of an average density less than one atom per cubic metre.

Drake multiplied the number of sunlike stars in our galaxy that form each year by a handful of variables: the fraction of those stars that have planets; the number of planets per planetary system where life could exist; the fraction of habitable planets where life actually arises; the fraction of those where intelligence emerges; the fraction of intelligent species that develop interstellar communication; and finally, the average length of time that those communicating civilizations survive.

The researchers studied six years of microlensing data and estimated that extrasolar planets are the rule rather than the exception, with each star in the galaxy hosting an average of 1.6 planets (Nature, DOI: 10.1038 / nature10684).

In optical light, void galaxies look bluer on average than galaxies in denser regions, thanks to starlight beaming from a goodly number of hulking, bluish stars.

Of course most stars are found in galaxies, so there could be a million instances of complex life in the Milky Way, separated by an average of only 300 light yearOf course most stars are found in galaxies, so there could be a million instances of complex life in the Milky Way, separated by an average of only 300 light yearof complex life in the Milky Way, separated by an average of only 300 light yearof only 300 light years.

(By contrast, the Milky Way, an average - sized galaxy, contains billions of stars.)

Karl Glazebrook and Ivan Baldry of Johns Hopkins University in Baltimore processed data from the 2dF Galaxy Redshift Survey — a study of more than 200,000 galaxies — and averaged together the light from all those stars.

Although many pairs of merging galaxies have been observed, the theory remains uncertain, partly because average ellipticals have many more star clusters than spiral galaxies, and it wasn't clear where the extra clusters came from.

From this viewpoint, you can think of our 5 - billion - year expiration date as the average time needed for a galaxy located anywhere inside our 13.7 - billion - light - year causal patch to reach the edge of the region.

Basically, you take the average number of stars in the galaxy and you ask what percentage have habitable planets.

He found that even if half of our galaxy was full of alien noise, the average number of signals that we would be able to detect from Earth is less than one (Scientific Reports, doi.org/b562).

«Rich groups of galaxies like the Coma Cluster are very, very rare, but there are quite a few galaxies the size of NGC 1600 that reside in average - size galaxy groups,» Ma said.

To me, that means we're able to understand the growth of the «average» galaxy with the mass of a Milky Way galaxy.»

If you were to divide the galaxy into cubes of space 3 light - years to a side, the average cube would hold a single star.

Even if the average galaxy is 1,000 times the mass of its hole, there is still a spread around this average — some galaxies are smaller or bigger.

The picture was taken by WISE, but has been artistically enhanced to illustrate the idea that clumped galaxies will, on average, be surrounded by larger halos of dark matter (represented in purple).

Unlike most nearby stars, «Oumuamua moves very slowly compared to the average motion of the rest of the galaxy.

Abstract: We measure the average mass properties of a sample of 41 strong gravitational lenses at moderate redshift (z ~ 0.4 - 0.9), and present the lens redshift for 6 of these galaxies for the first time.

Using the techniques of strong and weak gravitational lensing on archival data obtained from the Hubble Space Telescope, we determine that the average mass overdensity profile of the lenses can be fit wi... ▽ More We measure the average mass properties of a sample of 41 strong gravitational lenses at moderate redshift (z ~ 0.4 - 0.9), and present the lens redshift for 6 of these galaxies for the first time.

You probably get the idea at this point, but just to hammer it home: On average, galaxies are separated by millions of light years — and the latest estimates put the number of galaxies in the universe at around 500 billion.

Average in size, our star sits about 26,000 light - years from the center of the Milky Way galaxy.

In their survey of planets within 0.5 to 10 AUs of their host star, the astronomers found that 17 +6 / -9 percent of observed stars had Jupiter - class planets (of 0.3 to 10 Jupiter masses), 52 +22 / -29 percent had Neptune - class planets (of 10 to 30 Earth - masses), and that 62 +35 / -37 percent had super-Earths of 5 to 10 Earth - masses, which is consistent with the conclusion that an average star in the Milky Way should have one or more planets within an orbital distance of 0.5 to 10 AUs, and that there may be some 10 billion Earth - sized planets in the galaxy (ESO press release; Anil Ananthaswamy, New Scientist, January 11, 2012; Jason Palmer, BBC News, January 11, 2012; and Cassan et al, 2012).

The star orbits the galaxy's central black hole at an average distance of 5.5 light - days that takes about 15.2 years to complete, at «an inclination of 46 degrees with respect to the plane of the sky» (MPE research introduction).

Two American astrophysicists studied the color of the light emitted by 200,000 galaxies and created a cosmic spectrum, which they then averaged according to the light spectrum visible to human eyes.