Observation / Anniversary

NASA spacecraft mapping boundary between the Solar System and interstellar space surpasses another full year in space; launched on this day 2008.

European Space Agency / JAXA Mercury Planetary Orbiter (MPO) and Mercury Magnetospheric Orbiter (dubbed Mio ‘waterway or fairway’) surpasses another full year in space today, launched 2018;...

NASA spacecraft surpasses another full year in orbit around Mars today, holds record for longest-surviving continually active spacecraft in orbit around a planet other than Earth; launched...

NASA craft imaging Sun and solar phenomena surpasses another full year in space today; launched 2006.

NASA craft surpasses another full year in space today, having launched Aug 12, 2018; probe came within ~6.16M km of the Sun on Dec 24, 2024 which...

Today marks 10th full year / starts 11th year of continuous Human occupation of Tiangong Space Station; Shenzhou 14 three-member crew launched on this day in 2022,...