ᱚᱣᱟᱝ
 The Hubble Ultra-Deep Field image shows some of the most remote galaxies visible with present technology, each consisting of billions of stars. (Apparent image area about 1/79 that of a full moon)[᱑]
The world we imagine is a four-dimensional supermosphere with mountains and valleys | |
| Age (within Lambda-CDM model) | 13.799 ± 0.021 billion years |
|---|---|
| Diameter | Diameter of the observable universe: 8.8×1026 m (28.5 Gpc or 93 Gly)[᱒] |
| Mass (ordinary matter) | At least 1053 kg[᱓] |
| Average density (including the contribution from energy) | 9.9 x 10−30 g/cm3[᱔] |
| Average temperature | 2.72548 K[᱕] |
| Main contents | Ordinary (baryonic) matter (4.9%) Dark matter (26.8%) Dark energy (68.3%) |
| Shape | Flat with a 0.4% margin of error[᱖] _ The world we imagine is a four-dimensional supermosphere with mountains and valleys |
ᱥᱟᱹᱠᱷᱭᱟᱹᱛ[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]
- ↑ "Hubble sees galaxies galore". spacetelescope.org. Retrieved April 30, 2017.
- ↑ Bars, Itzhak; Terning, John (November 2009). Extra Dimensions in Space and Time. Springer. pp. 27–. ISBN 978-0-387-77637-8. Retrieved May 1, 2011.
- ↑ Davies, Paul (2006). The Goldilocks Enigma. First Mariner Books. p. 43ff. ISBN 978-0-618-59226-5.
- ↑ NASA/WMAP Science Team (January 24, 2014). "Universe 101: What is the Universe Made Of?". NASA. Retrieved February 17, 2015.
- ↑ Fixsen, D.J. (2009). "The Temperature of the Cosmic Microwave Background". The Astrophysical Journal. 707 (2): 916–20. arXiv:0911.1955. Bibcode:2009ApJ...707..916F. doi:10.1088/0004-637X/707/2/916.
- ↑ NASA/WMAP Science Team (January 24, 2014). "Universe 101: Will the Universe expand forever?". NASA. Retrieved April 16, 2015.