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 a NASA Earth Observing System satellite launched on May 4, 2002, into a sun-synchronous polar orbit. It carries...

Nasa Eos Past Earth

8.4 Great

13

Landsat 7

Landsat 7 is an Earth observation satellite launched on April 15, 1999, as part of the joint NASA–U.S. Geological Survey...

Imaging Nasa Past Earth

8.3 Great

14

Van Allen Probes

The Van Allen Probes were two identical NASA spacecraft launched together in 2012 to study the radiation belts surroundi...

Nasa Past Plasma Earth

8.2 Great

15

GRACE-FO

GRACE-FO, the Gravity Recovery and Climate Experiment Follow-On, is a joint NASA and German Research Centre for Geoscien...

Active Nasa Gravity Earth

8.2 Great

16

ICESat

ICESat (Ice, Cloud, and land Elevation Satellite) was NASA's Earth observation mission launched on January 12, 2003, to...

Laser Nasa Ice Past

8.1 Great

17

CALIPSO

CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation) was a joint Earth-observing satellite missio...

Nasa Lidar Past Earth

8.1 Great

18

GRAIL

GRAIL, short for Gravity Recovery and Interior Laboratory, was a NASA mission that used two spacecraft to map variations...

Twin Nasa Gravity Past

8.1 Great

19

CloudSat

CloudSat was a NASA Earth observation satellite launched in 2006 as part of the agency's Earth System Science Pathfinder...

Radar Nasa Past Earth

7.8 Good

20

Geotail

Geotail was a joint Japanese and United States space mission launched in 1992 to investigate Earth's magnetosphere, espe...

Nasa Past Magnetosphere Earth

7.6 Good