Neptunes missions series#

FINESSE will obtain the atmospheric composition measurements of metallicity and carbon-to-oxygen ratio that are needed to address all future efforts to understand planet origins.

Determine key aspects of the planet formation process.

The FINESSE survey will yield transformative knowledge about the extended planet family by discovering what these alien worlds are like, determining what makes them they way they are, and allowing this knowledge to be applied in the broader planetary context, including the search for life outside of our Solar System.įINESSE directly addresses NASA's science objective to 'Generate a census of extra-solar planets and measure their properties.' FINESSE's broad, instantaneous spectral coverage and survey capability enable exploration of TESS discoveries and will provide a framework for interpreting detailed JWST observations. It will revolutionize our understanding of exoplanet atmospheres by spectroscopically surveying 500 planets outside of our Solar System, ranging from terrestrials with extended atmospheres to sub-Neptunes to gas giants. This is a JPL-produced documentary from 1990 on the Voyager mission to the outer planets.FINESSE is the first mission dedicated to the spectral characterization of the rapidly growing number of newly discovered worlds. Indeed, it could be argued that the achievements of the Voyager mission will not be reproduced until the first exploration of an extrasolar planetary system maybe centuries from now. Not even the upcoming encounter of New Horizons with Pluto, which will finally complete NASA’s original “Grand Tour”, will be able to reproduce the magnitude of discovery of the Neptune encounter with Voyager 2. Given how little was actually known about Neptune and its pair of then-known moons, Nereid and Triton, due to their great distance from the Earth, the Voyager 2 encounter with Neptune was one guaranteed to make many new discoveries. This new article covers the history of the mission of Voyager 2 to Neptune from its origins almost half a century ago as part of NASA’s proposed “Grand Tour of the Outer Planets” until the encounter a dozen years after launch – the longest planetary mission until that point in history. The background of the mission of Voyager 1 to Saturn’s moon, Titan, is covered in “ Voyager 1: The First Close Encounter with Titan” while details of the Voyager 2 encounter with Uranus in 1986 (a recommended prequel to the new article) are given in “ Voyager 2: The First Uranus Flyby”.

Neptunes missions series#

In celebration of the historic 25 th anniversary of the Voyager 2 encounter at Neptune, the latest installment in my continuing series on the history of the Voyager mission to the outer planets, ” The Grand Tour Finale: Neptune”, has been published on line in The Space Review. Over the course of a dozen years, NASA’s twin Voyager probes explored every outer planet, save for Pluto, to take advantage of a rare planetary alignment that will not reoccur until the mid-22 nd century. The Voyager mission to the outer planets was arguably one of the greatest voyages of discovery in the history of human exploration.