National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive

Welcome to the NASA Space Science Data Coordinated Archive, NASA's archive for space science mission data.

Some portions of the NSSDCA web site may be affected by system upgrades taking place on the morning (EDT) of Monday, 27 September. Your indulgence is appreciated.

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Astrophysics data and mission information
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Recent News in...


Observations from HST and the Kepler space telescope have provided evidence for the first moon discovered orbiting a planet outside of our solar system. The discovery was announced on 03 October 2018. The moon may be the size of Neptune, orbiting a planet several times the mass of Jupiter with the designation Kepler-1625b. More...


The Voyager 2 became the second spacecraft (the first was Voyager 1) to escape the heliosphere and enter insterstellar space. More...

The Parker Solar Probe made its first perihelion pass on 05 November 2018, coming within 25 million km of the Sun. The probe will orbit the Sun over the course of the next seven years, ultimately coming closer than 7 million km from the Sun's surface.

Lunar and Planetary Science

The James Webb Space Telescope has been scheduled to launch from Kourou, French Guiana, on 18 December. For more detail see the NASA Press Release.

ESA's Bepi-Colombo mission will make its first Mercury flyby on 1 October.

Launch of the Lucy mission to seven asteroids is scheduled for 16 October at 09:34 UT (5:34 a.m. EDT).

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