swap_horiz Spektr-R 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

Vostok 1

The Vostok 1 mission represents a pivotal moment in space exploration history. Launched by the Soviet Union in April 196...

Soviet Past Leo Crewed

9.7 Brilliant

3

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

4

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

5

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

6

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

7

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

8

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

9

Venera 13

The Venera 13 mission represents a significant achievement in early planetary exploration. Launched by the Soviet Union...

Surface Soviet Past Lander

9.2 Excellent

10

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

11

Luna 9

The Luna 9 mission represents a significant achievement in early space exploration. Launched by the Soviet Union in 1966...

Soviet Past Moon Lander

9.2 Excellent

12

Chang'e 6

Chang’e 6 is a Chinese space mission successfully delivering lunar samples from the Moon’s far side in December 2024. Th...

China Past Moon Sample Return

9.2 Excellent

13

Herschel

The Herschel Space Observatory was a European Space Agency mission launched in 2009. It operated primarily in infrared w...

Astronomy Telescope Infrared Past

8.8 Great

14

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

15

Rossi X-ray Timing Explorer

The Rossi X-ray Timing Explorer (RXTE) was an artificial satellite launched by NASA on December 30, 1995, to observe ast...

Astronomy Nasa Past Timing

8.3 Great

16

Spektr-RG

Spektr-RG is a Russian-German space-based X-ray observatory launched in 2019 and placed in an orbit around the Sun-Earth...

Astronomy Russia Telescope Active

8.2 Great

17

Infrared Space Observatory

The Infrared Space Observatory (ISO) was a European Space Agency space telescope launched by an Ariane 4 rocket in Novem...

Astronomy Telescope Infrared Past

7.9 Good

18

Akari

Akari, originally known as ASTRO-F, was an infrared astronomy satellite developed by the Japan Aerospace Exploration Age...

Survey Telescope Infrared Past

7.7 Good

19

AstroSat

AstroSat is an Indian space observatory designed to study astronomical sources across ultraviolet and X-ray wavelengths....

Astronomy Telescope Active Multiwavelength

7.4 Good

20

Hitomi

Hitomi, also designated ASTRO-H, was a Japanese X-ray astronomy satellite launched by JAXA on 17 February 2016. Develope...

Astronomy Telescope Past X Ray

4.7 Poor