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In-The-Sky.org
vs
NASA Mars Trek

In-The-Sky.org: Astronomy events, sky charts and planet positions for your location. NASA Mars Trek: Explore Mars with imagery and elevation from NASA missions.

In-The-Sky.orgNASA Mars Trek
CategorySpace, Planets & Sky MapsSpace, Planets & Sky Maps
CoverageThe skyMars
UpdatesDailyStatic archive
Data sourceEphemeridesMars orbiters (MRO, Mars Express and others)
Made byDominic FordNASA Solar System Treks
PriceFreeFree
AccountNo account neededNo account needed
On phonesWorks well on phonesBest on a computer
Map viewFlat map3D globe
Visits from ColorfulMaps00
Open map Open map

What you can do with In-The-Sky.org

  • Calendar of astronomy events
  • Sky charts
  • Eclipse and comet maps

Full review · In-The-Sky.org alternatives

What you can do with NASA Mars Trek

  • Mars imagery and elevation
  • Rover landing sites
  • 3D terrain
  • Measurement tools

Full review · NASA Mars Trek alternatives

Summary based on public information. Check each map's website for current features and prices.