swap_horiz GRACE Alternatives

1

Apollo 8

The Apollo 8 mission involved a three-man NASA crew – Frank Borman, James Lovell, and William Anders – undertaking the f...

Lunar Nasa Apollo Past

9.7 Brilliant

2

Mars Exploration Rover Opportunity

The Opportunity rover was a NASA mission designed to study the geology of Mars’ Meridiani Planum region. Launched in 200...

Geology Nasa Mars Rover

9.5 Brilliant

3

Apollo 17

The Apollo 17 mission represents NASA’s concluding journey to the Moon within the Apollo program. Launched in December 1...

Lunar Nasa Apollo Past

9.4 Excellent

4

Cosmic Background Explorer

The Cosmic Background Explorer (COBE) was a NASA space mission launched in 1989 to study the cosmic microwave background...

Survey Cosmology Nasa Microwave

9.4 Excellent

5

Viking 1

The Viking 1 mission involved both an orbiter and a lander deployed to Mars in 1975. It achieved the historic feat of de...

Nasa Mars Past Lander

9.4 Excellent

6

WMAP

The Wilkinson Microwave Anisotropy Probe (WMAP) was a NASA space mission that studied the cosmic microwave background ra...

Survey Cosmology Nasa Microwave

9.3 Excellent

7

OSIRIS-REx

The OSIRIS-REx spacecraft undertook a NASA mission to study the asteroid Bennu. Launched in 2016, it successfully collec...

Nasa Past Asteroid Sample Return

9.3 Excellent

8

Pioneer 10

NASA’s Pioneer 10 is a historic space probe launched in 1972. It achieved several significant milestones including being...

Nasa Deep Space Jupiter Past

9.2 Excellent

9

Ingenuity Mars Helicopter

The Ingenuity Mars Helicopter is a small rotorcraft developed by NASA for exploration on Mars. It achieved unprecedented...

Helicopter Technology Nasa Mars

9.2 Excellent

10

Space Shuttle STS-1

The Space Shuttle STS-1 mission marked America’s first crewed launch of the Space Shuttle program. This historic flight...

Nasa Past Shuttle Orbiter

9.1 Excellent

11

Landsat 5

Landsat 5 is a NASA space mission providing continuous global imagery since its launch in 1984. This satellite’s extende...

Imaging Nasa Earth Landsat

9.1 Excellent

12

Aqua

Aqua is NASA's 2002 Earth Observing System satellite, notable for long-term measurements of water vapor, clouds, precipi...

Nasa Eos Past Earth

8.4 Great

13

Landsat 7

Landsat 7 is a NASA-USGS Earth imaging satellite launched in 1999, notable for ETM+ data and a 2003 scan-line corrector...

Imaging Nasa Past Earth

8.3 Great

14

Van Allen Probes

The Van Allen Probes were NASA twin spacecraft launched in 2012 to study Earth's radiation belts, operating for seven ye...

Nasa Past Plasma Earth

8.2 Great

15

GRACE-FO

GRACE-FO is the 2018 NASA-GFZ follow-on twin mission, notable for continuing gravity mapping and testing laser inter-sat...

Active Nasa Gravity Earth

8.2 Great

16

ICESat

ICESat was NASA's 2003 laser altimetry mission, notable for measuring ice sheet elevation, clouds, and land topography w...

Laser Nasa Ice Past

8.1 Great

17

CALIPSO

CALIPSO was a NASA-CNES Earth-observing satellite launched in 2006, notable for lidar profiles of global clouds and atmo...

Nasa Lidar Past Earth

8.1 Great

18

GRAIL

GRAIL was a NASA twin-spacecraft mission launched in 2011 to map the Moon's gravity field and reveal details of its inte...

Twin Nasa Gravity Past

8.1 Great

19

CloudSat

CloudSat was a NASA Earth-observing satellite launched in 2006 to profile cloud structure, using the first 94 GHz cloud...

Radar Nasa Past Earth

7.8 Good

20

Geotail

Geotail was a 1992 ISAS-NASA mission that studied Earth's magnetotail, notable for three decades of magnetosphere observ...

Nasa Past Magnetosphere Earth

7.6 Good