Universal Acceleration
https://en.wikipedia.org/wiki/Accelerating_expansion_of_the_universe
https://www.forbes.com/sites/startswithabang/2018/01/03/scientists-still-dont-know-how-fast-the-universe-is-expanding/#7b7e103b36cf

Matter & Anti-Matter Ratio
https://en.wikipedia.org/wiki/Baryon_asymmetry
https://home.cern/topics/antimatter/matter-antimatter-asymmetry-problem
The Pioneer Anomaly
https://en.wikipedia.org/wiki/Pioneer_anomaly#Explanation:_thermal_recoil_force
https://en.wikipedia.org/wiki/Pioneer_anomaly
Neith
https://en.wikipedia.org/wiki/Neith_(hypothetical_moon)
http://solarviews.com/eng/hypothet.htm#neith
Paranego's Discontinuity
https://www.nbcnews.com/mach/science/universe-conscious-ncna772956
https://books.google.co.uk/books?id=l5iKCgAAQBAJ&pg=PA265&lpg=PA265&dq=Parenago%E2%80%99s+Discontinuity&source=bl&ots=44-_m1tcEO&sig=cBSUzhHhoxuItUkIIF-pZPMNbq0&hl=en&sa=X&redir_esc=y#v=onepage&q=Parenago%E2%80%99s%20Discontinuity&f=false

Flyby Anomaly
https://phys.org/news/2014-09-anomaly-satellite-flybys-confounds-scientists.html
https://en.wikipedia.org/wiki/Flyby_anomaly

Axis of Evil
https://www.space.com/37334-earth-ordinary-cosmological-axis-evil.html
https://en.wikipedia.org/wiki/Axis_of_evil_(cosmology)
The Astronomical Unit
https://www.technologyreview.com/s/414539/the-puzzle-of-astronomys-unexplained-anomalies/
https://www.technologyreview.com/s/417111/dark-matter-may-explain-the-puzzling-change-in-earth-sun-distance/
http://vixra.org/pdf/1304.0124v1.pdf
https://www.sciencedirect.com/science/article/pii/S0273117713004377
The Kuiper Cliff
https://www.realclearscience.com/lists/unsolved_problems_in_astronomy/kuiper_cliff.html
https://en.wikipedia.org/wiki/Kuiper_belt#Kuiper_cliff

Star Age
https://www.forbes.com/sites/startswithabang/2017/09/07/the-greatest-cosmic-puzzle-astronomers-find-stars-that-appear-older-than-the-universe/#721961393c44
https://www.space.com/20112-oldest-known-star-universe.html