swap_horiz NEO Surveyor 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

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

4

Mars Science Laboratory (Curiosity)

The Mars Science Laboratory is a NASA robotic space mission that landed the car-sized Curiosity rover in Gale Crater on...

Nasa Mars Rover 2011

9.7 Brilliant

5

Mars 2020 (Perseverance)

Mars 2020 is an ongoing NASA space mission that successfully landed the Perseverance rover in Mars's Jezero Crater in Fe...

2020 Nasa Mars Rover

9.7 Brilliant

6

OSIRIS-REx (Bennu Sample Return)

OSIRIS-REx is a NASA spacecraft mission designed to travel to the near-Earth asteroid 101955 Bennu, collect a surface sa...

2023 Nasa Asteroid Earth Return

9.7 Brilliant

7

STS-61 Hubble Servicing

STS-61 was a 1993 NASA Space Shuttle Endeavour mission dedicated to servicing the Hubble Space Telescope. As the first s...

Nasa 1993 Shuttle Hubble Repair

9.6 Brilliant

8

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

9

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

10

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

11

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

12

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

13

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

14

DART

NASA’s DART mission successfully impacted the asteroid Dimorphos in October 2022. This marked the first demonstration of...

Impact Nasa Past Asteroid

8.9 Great

15

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

16

Infrared Astronomical Satellite

The Infrared Astronomical Satellite (IRAS) was a joint space telescope mission developed by the United States, the Nethe...

Telescope Nasa Infrared Past

8.6 Great

17

Deep Space 1

The Deep Space 1 mission, undertaken by NASA, investigated Comet Hale-Bopp in 1998. This spacecraft demonstrated the via...

Nasa Comet Asteroid Ion Drive

8.1 Great

18

DAVINCI

DAVINCI, an acronym for Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging, is a planned NASA pl...

Composition Nasa Planned Venus

7.7 Good

19

OSIRIS-APEX

OSIRIS-APEX is NASA's extended mission for the spacecraft that returned a sample from asteroid Bennu in 2023 under the O...

Active Nasa Extended Asteroid

7.2 Good

20

Psyche

Psyche is a NASA robotic space mission to the asteroid 16 Psyche. The spacecraft is designed to orbit and study the meta...

Active Nasa Asteroid Orbiter

7.0 Good