swap_horiz Solar Orbiter 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

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

5

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

6

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

7

Mariner 9

The Mariner 9 mission involved a NASA-operated spacecraft that orbited Mars from 1971 to 1973. It is significant as the...

Mapping Nasa Mars Orbiter

9.2 Excellent

8

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

9

Tianwen-1

The Tianwen-1 mission represents China’s ambitious exploration of Mars. This active space project launched in July 2020...

China Active Mars Lander

9.0 Excellent

10

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

11

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

12

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

13

Viking 2

The Viking 2 spacecraft was a NASA mission launched in 1976 to explore Mars. It landed near Utopia Planitia and function...

Nasa Mars Past Lander

8.8 Great

14

NEAR Shoemaker

The NEAR Shoemaker mission, a NASA project, studied the near-Earth asteroid 433 Eros. Launched in 1998, it successfully...

Nasa Past Asteroid Orbiter

8.8 Great

15

Mars Express

Mars Express is an ESA orbiter launched in 2003 and ESA's first Mars mission, mapping the planet and probing subsurface...

Active Planetary Mars Orbiter

8.4 Great

16

MAVEN

MAVEN is a NASA Mars orbiter launched in 2013 to study the upper atmosphere and how solar wind stripped gases from the p...

Active Nasa Mars Atmosphere

8.2 Great

17

2001 Mars Odyssey

2001 Mars Odyssey is a NASA orbiter launched in 2001 that mapped Martian hydrogen, found evidence for water ice, and rel...

Mapping Active Nasa Mars

8.1 Great

18

ExoMars Trace Gas Orbiter

ExoMars Trace Gas Orbiter is a 2016 ESA-Roscosmos Mars orbiter that studies trace gases such as methane and relays surfa...

Active Mars Orbiter Esa

7.7 Good

19

BepiColombo

BepiColombo is an ESA-JAXA Mercury mission launched in 2018, carrying two orbiters scheduled to begin science operations...

Active Mercury Orbiter Esa

7.1 Good

20

Psyche

Psyche is a NASA mission launched in 2023 to visit 16 Psyche, a metal-rich asteroid that may expose material from an ear...

Active Nasa Asteroid Orbiter

7.0 Good