Space and Astronomy Atlas
Claims this atlas currently marks as unsettled or as tested and found false. A debated fact is one scholars hold competing positions on; a debunked one has been checked against the record and found not to hold. Both are kept in view rather than quietly smoothed over, with the reasoning that put each one where it stands.
6 statements marked Debated.
Artemis Program, OutcomeIn progress; crewed lunar landing not yet achieved as of the mid-2020s.
Artemis Program, Missions and Programs
Standing
Concerns Outcome
Currently States In progress; crewed lunar landing not yet achieved as of the mid-2020s.
Program in progress as of the mid-2020s; crewed lunar landing dates have slipped repeatedly and remain unsettled.
Source NASA History Office
Ceres, Object TypeDwarf planet (IAU classification, 2006, asteroid belt); planet (1801 classification)
Ceres, Celestial Objects
Standing
Concerns Object Type
Currently States Dwarf planet (IAU classification, 2006, asteroid belt); planet (1801 classification)
Classified a planet at discovery in 1801, then an asteroid once similar bodies were found nearby, then a dwarf planet under the IAU's 2006 dynamical definition; a minority of planetary scientists, including New Horizons principal investigator Alan Stern, reject that dynamical definition in favor of a geophysical one that would restore Ceres to full planet status. See the recorded dissent on this fact.
Source Wikipedia (space and spaceflight articles)
Habitable Zone, Proposed ByHubertus Strughold and Harlow Shapley (1953); formalized as the modern circumstellar habitable zone by Su-Shu Huang in the 1950s-1960s
Habitable Zone, Concepts
Standing
Concerns Proposed By
Currently States Hubertus Strughold and Harlow Shapley (1953); formalized as the modern circumstellar habitable zone by Su-Shu Huang in the 1950s-1960s
Multiple researchers converged on the idea independently rather than one person formulating it: Hubertus Strughold introduced the related 'ecosphere' concept in 1953, the same year Harlow Shapley wrote about a 'liquid water belt'; the modern circumstellar habitable zone concept was then developed and formalized by Su-Shu Huang across a series of papers in the 1950s and 1960s.
Source Wikipedia (space and spaceflight articles)
Habitable Zone, Formulated Year1953
Habitable Zone, Concepts
Standing
Concerns Formulated Year
Currently States 1953
Multiple researchers converged on the idea independently rather than one person formulating it: Hubertus Strughold introduced the related 'ecosphere' concept in 1953, the same year Harlow Shapley wrote about a 'liquid water belt'; the modern circumstellar habitable zone concept was then developed and formalized by Su-Shu Huang across a series of papers in the 1950s and 1960s.
Source Wikipedia (space and spaceflight articles)
Pluto, Object TypeDwarf planet (IAU classification, 2006); planet (1930-2006 classification)
Pluto, Celestial Objects
Standing
Concerns Object Type
Currently States Dwarf planet (IAU classification, 2006); planet (1930-2006 classification)
Classified as the ninth planet 1930-2006; reclassified as a dwarf planet by the IAU's 2006 definition, a decision some astronomers and the New Horizons mission team have publicly disputed on scientific grounds.
Source NASA Solar System Exploration
Sputnik Program, End Date1958-05-15
Sputnik Program, Missions and Programs
Standing
Concerns End Date
Currently States 1958-05-15
Sputnik 3, launched 15 May 1958, is treated by most sources as the last of the original three IGY-era Sputnik satellites, but the Soviet Union continued to use the Sputnik name for later test satellites into the early 1960s, so no single, universally agreed program end date exists.
Source NASA History Office