Web Results

en.wikipedia.org/wiki/Dark_energy

In physical cosmology and astronomy, dark energy is an unknown form of energy which is ... The mass–energy of dark matter and ordinary (baryonic) matter contribute 26.8% and 4.9%, respectively, and other ..... They allow the expansion history of the universe to be measured by looking at the relationship between the  ...

www.indiana.edu/~geol105/images/gaia_chapter_1/dark_matter_in_the_universe.htm

Nowadays we prefer to call the missing mass "dark matter," for it is the light, not the ... When we observe the orbits of stars and clouds of gas as they circle the ...

www.e-education.psu.edu/astro801/content/l10_p9.html

Today, we do not know what is the exact cause of this force, just that it exists. Since we call the matter that we cannot observe directly "dark matter," we call this  ...

starchild.gsfc.nasa.gov/docs/StarChild/questions/question59.html

Dark matter is the name scientists have given to the particles which we believe exist in the universe, but which we cannot directly see! Dark matter was initially ...

www.scientificamerican.com/article/what-are-dark-matter-and

Aug 28, 2006 ... Dark energy and dark matter describe proposed solutions to as yet unresolved gravitational phenomena. So far as we know, the two are distinct ...

science.slashdot.org/story/17/04/13/0030226/scientists-capture-first-image-of-dark-matter-web

Apr 13, 2017 ... In the Einstein universe, are they (matter & energy) not simply different ... We don' t actually know for certain that what we call "dark matter" is ...

www.physicsmatt.com/dark-matter

We call these two substances Dark Matter and Dark Energy. And we know very little about either, other than they exist, and they have gravitational effects on how  ...

www.cfhtlens.org/public/what-gravitational-lensing

Dark energy and dark matter are so named because cosmologists don't know what ... When astronomers refer to lensing, they are talking about an effect called ... their shapes are altered by only 1%, an effect we call weak gravitational lensing.

www.cfhtlens.org/public/what-dark-matter

Scientists call this 'regular' matter baryonic matter, so called because it is made ... Dark matter is the name we give to matter we can not observe directly, and that ... in fact, that they should have been able to escape the gravitational pull of the ...