swap_horiz TRACERS Alternatives

1

Voyager 2

Voyager 2 is a NASA-built spacecraft deployed in 1977. It’s notable for being the first to explore Uranus and Neptune pr...

Active Nasa Interstellar Outer Planets

10.0 Brilliant

2

Voyager 1

Voyager 1 is an active NASA spacecraft launched in 1977. It undertook a flyby mission to Jupiter and Saturn. The probe a...

Active Nasa Interstellar Outer Planets

9.9 Brilliant

3

New Horizons

The New Horizons mission is an active NASA space probe studying the outer solar system. Launched in 2006, it achieved a...

Active Nasa Kuiper Belt Pluto

9.4 Excellent

4

Curiosity Mars Rover

The Curiosity rover is an active NASA mission exploring Mars from Gale Crater. Launched in 2011, it investigates the pla...

Geology Active Nasa Mars

9.3 Excellent

5

Perseverance Mars Rover

The Perseverance rover is an active NASA mission exploring Mars. It operates within Jezero Crater, analyzing the geology...

Active Nasa Mars Rover

9.2 Excellent

6

Lunar Reconnaissance Orbiter

The Lunar Reconnaissance Orbiter (LRO) is a NASA spacecraft currently orbiting the Moon. Launched in 2009, it provides d...

Mapping Active Nasa Moon

9.0 Excellent

7

Landsat 8

Landsat 8 is an active Earth observation satellite operated by NASA and the USGS. This mission continues a decades-long...

Imaging Active Nasa Earth

8.8 Great

8

Mars Reconnaissance Orbiter

The Mars Reconnaissance Orbiter is a NASA spacecraft orbiting Mars since 2006. It provides high-resolution imaging of th...

Imaging Active Nasa Mars

8.8 Great

9

Solar Orbiter

Solar Orbiter is a spacecraft developed by the European Space Agency with NASA participation to study the Sun and the in...

Solar Active Nasa Orbiter

8.6 Great

10

ICESat-2

ICESat-2 (Ice, Cloud, and land Elevation Satellite 2) is an Earth observation satellite launched by NASA in 2018 as a fo...

Laser Active Nasa Ice

8.4 Great

11

ACE

The Advanced Composition Explorer (ACE) is a NASA space mission designed to study the composition of matter from the sol...

Active Nasa Solar Wind Heliophysics

8.3 Great

12

Landsat 9

Launched in September 2021, Landsat 9 is an Earth observation satellite jointly managed by NASA and the U.S. Geological...

Imaging Active Nasa Earth

8.2 Great

13

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

14

MAVEN

MAVEN, short for Mars Atmosphere and Volatile Evolution, is a NASA orbiter launched in 2013 and placed into orbit around...

Active Nasa Mars Atmosphere

8.2 Great

15

2001 Mars Odyssey

2001 Mars Odyssey is a NASA spacecraft that entered orbit around Mars in 2001. Its instruments mapped the planet's surfa...

Mapping Active Nasa Mars

8.1 Great

16

MMS

The Magnetospheric Multiscale (MMS) mission is a NASA space mission launched in 2015 to study the Earth's magnetosphere....

Active Nasa Plasma Magnetosphere

7.9 Good

17

SMAP

The Soil Moisture Active Passive (SMAP) is an environmental satellite launched by NASA in January 2015 to monitor Earth'...

Soil Moisture Active Radar Nasa

7.9 Good

18

SWOT

SWOT (Surface Water and Ocean Topography) is a satellite jointly developed by NASA and CNES, the French space agency, wi...

Water Active Nasa Earth

7.9 Good

19

THEMIS

THEMIS (Time History of Events and Macroscale Interactions during Substorms) is a NASA mission launched in 2007 comprisi...

Active Nasa Aurora Plasma

7.8 Good

20

CYGNSS

CYGNSS, the Cyclone Global Navigation Satellite System, is a NASA Earth-observation mission made up of eight microsatell...

Active Nasa Earth Smallsat

7.1 Good