Rank 41 documents ICESat-2 — Ice, Cloud, and land Elevation Satellite-2 — the Earth Science mission that extended NASA's laser altimetry climate record with micro-pulse photon-counting precision. Launched 15 September 2018 aboard Delta II 7420 from Vandenberg — the last flight of that legendary rocket family — the 1,514 kg spacecraft carries ATLAS (Advanced Topographic Laser Altimeter System) firing six parallel beams at 10 kHz from a 496 km polar orbit. Goddard's mission team measures ice sheet elevation change, sea ice freeboard, forest canopy height, and coastal bathymetry where water is clear enough for green laser penetration. ATLAS improved vertical resolution over the original ICESat GLAS instrument by orders of magnitude, turning single-photon returns into continental-scale trend maps. Wallimilist renders ICESat-2 with six laser beams striking an etched ice shelf, six-beam elevation graph, and Earth Science programme bar exactly as the master PNG dictates — 2018 Delta II kicker, cream-navy palette, and curator copy on polar altimetry and final Delta II heritage.