The Universe is at least 137 billion light-years wide (42 Gpc), new study from Oxford astronomers showed (arXiv:1101.5476). Compared to more traditional statistical techniques they got that the Universe is at least 200 billion light-years wide, which means that it is actually 50 Billion light years bigger than previously estimated. However, the new statistical method didn’t force it’s own preference on the shape of the Universe via specifically chosen prior parameters, thus it is possible to set 137 Billion light-years as the smallest lower limit on the size of the Universe.
The study also showed that the most likely Universe is the Universe predicted by Einstein, and has flat geometry and cosmological constant. We would like to remind the readers that Einstein introduced cosmological constant to make the Universe static, while later he rejected the idea in favor of dynamic universe. However, modern astronomers found that the Universe expands with acceleration, thus they introduced the cosmological constant again to make universe expand with acceleration and called it the Dark Energy.
We have also previously written about the teams previous works, which covered the best possible future estimates on the curvature of the Universe as well as on the best observational strategies to understand the Dark Energy and Curvature.
BIO: In 2005 Mihran graduated from Yerevan State University Physics department with Bachelors degree in Theoretical Physics. In 2006 Mihran was invited to continue his education at the University of Oxford as a D.Phil student, working on advanced statistical methods in Cosmology. He developed new statistical techniques to compere cosmological models, forecast future results of cosmological experiments and derive possible limits on reconstruction of cosmic curvature. He is the author of one of the most popular online cosmology calculators: iCosmos.co.uk.
In 2007 Mihran co-funded Oxford University Armenian Society – currently he is the President of the society. He organized many events to promote Armenian culture, regular Armenian language classes, Armenian film showings, and joint social events with other Oxford societies. Also he founded the society’s library.
During his time at Oxford Mihran has co-founded Get-Inspired.org project that aims to encourage talented students from disadvantaged regions, to realize their full potential and go to study at the leading universities abroad. He is also the leader and organizer of the Oxford University Expedition to Qarahunge. The expedition has been approved and supported by Oxford University Expedition Council and Royal Geographical Society. After the expedition Qarahunge has been featured on H1, Voice of America, CNN, CBS, History Channel US and etc. This proved to be one of the biggest promotional campaigns for Syunik Province.