The March-April issue of The Earth Observer marks the thirtieth anniversary of the publication of our first issue (March 1989)—shortly after the official beginning of NASA’s Earth Observing System (EOS) Program. The Earth Observer has adapted over the years, maintaining its role for three decades. It is well known and respected throughout the global Earth science community, with around 5300 subscribers around the world at last count. Now in Volume 31, the newsletter continues to live out the mission it had from its inception: to report timely news from NASA’s Earth Science Program. On page 4 of this issue, Executive Editor, Alan Ward, offers his perspective on the publication’s evolution over the time he has been involved.
Read More
Recent Imagery
You will be directed to the NASA Visible Earth webpage when you select Images by Mission below, or click on the images at right that are randomly generated to represent four out of all possible topics.
NASA's Earth Observing System Project Science Office
NASA’s Earth Observing System (EOS) is a coordinated series of polar-orbiting and low inclination satellites for long-term global observations of the land surface, biosphere, solid Earth, atmosphere, and oceans. As a major component of the Earth Science Division of NASA’s Science Mission Directorate, EOS enables an improved understanding of the Earth as an integrated system. The EOS Project Science Office (EOSPSO) is committed to bringing program information and resources to the Earth science research community and the general public alike.
Download ChartEarth Science Mission Profiles
This website has been designed to cover not just the original Earth Observing System (EOS) missions, but also all of NASA’s Earth-observing satellite missions (many of them joint with other nations and/or agencies), along with other elements of NASA’s Earth Science program. The EOSPSO is funded through the Earth Science Division of NASA’s Science Mission Directorate.
NASA Earth Science Division Operating Missions

Updated: May 17, 2019
-
-
-
-
Aquarius (NASA/Argentina )
-
Launch: Jun 10 2011
- Altitude:
- 657km
- Inclination:
- 98.00°
- Local Node:
- 6:00 a.m.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Aqua (Joint with Japan and Brazil)
-
Launch: May 4 2002
- Altitude:
- 705km
- Inclination:
- 98.20°
- Local Node:
- 1:30 p.m.
-
Aura (Joint with Netherlands, Finland, and the U.K.)
-
Launch: Jul 15 2004
- Altitude:
- 705km
- Inclination:
- 98.20°
- Local Node:
- 1:45 p.m.
-
-
CloudSat (Joint with Canada)
-
Launch: Apr 28 2006
- Altitude:
- 705km
- Inclination:
- 98.20°
- Local Node:
- 1:30 p.m.
-
-
-
-
-
-
-
-
GRACE-FO (NASA, German Research Centre for Geosciences (GFZ))
-
Launch: May 22 2018
- Altitude:
- 490km
- Inclination:
- 89.00°
-
-
Jason-3 (Joint with NOAA, CNES, and EUMETSAT)
-
Launch: Jan 17 2016
- Altitude:
- 1,336km
- Inclination:
- 66.00°
-
-
Landsat 7 (Joint with USGS)
-
Launch: Apr 15 1999
- Altitude:
- 705km
- Inclination:
- 98.20°
- Local Node:
- 10:05 a.m.
-
-
-
-
-
OSTM/Jason-2 (Joint with NOAA, CNES, and EUMETSAT)
-
Launch: Jan 20 2008
- Altitude:
- 1,336km
- Inclination:
- 66.00°
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-





