Eclipse expeditions form 1919 testing the theory of relativity including an update from 2017 with an amateur attempt by Dan Burns.

A survey of key eclipse expeditions confirming Einstein's prediction of light deflection.

Two new supernova for 2020 with derivations based on observed and published magnitudes compared to Hubble's Constant

A review of estimates of Hubble's Constant over time including two values from the author.

Reported COVID 19 cases per 100k based on CDC data and 2010 US Census data.

Spread of reported COVID 19 cases per 100k population.

Reported Covid 19 cases standardized by population. Data obtained from CDC.gov and 2010 US Census information.

Interactive map of the top 50 Highest Astronomical Observatories. Data from Wikipedia and graphed in R and R Studio using the leaflet library.

Leaflet map of top 50 highest astronomical observatories

Exoplanets