swap_horiz Herschel Alternatives

1

Sentinel-2

Sentinel-2 is an Earth observation mission developed by the European Space Agency (ESA) as part of the Copernicus Progra...

Land 2015 Esa Earth Observation

9.24 Excellent

2

Sentinel-1

Launched by the European Space Agency in 2014, Sentinel-1 is a radar imaging satellite and a core component of the Coper...

2014 Radar Esa Sar

9.08 Excellent

3

IRAS

The Infrared Astronomy Satellite (IRAS) operated from 1983 to 1989. This joint US, UK, and Dutch space mission conducted...

Survey Historic Infrared Observatory

9.05 Excellent

4

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

8.96 Great

5

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

7.93 Good

6

Envisat

Envisat was a large Earth-observation satellite operated by the European Space Agency (ESA). Launched into polar orbit i...

Environment Radar Past Earth

7.82 Good

7

Sentinel-1A

Sentinel-1A is a European Space Agency Earth observation satellite launched in 2014 as part of the Copernicus Programme....

Radar Past Earth Esa

7.67 Good

8

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

7.59 Good

9

Giotto

Giotto was a European Space Agency spacecraft launched in 1985 to investigate Halley's Comet during its 1986 return to t...

Past Comet Halley Esa

7.53 Good

10

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

7.50 Good

11

Venus Express

Venus Express was a European Space Agency spacecraft launched in 2005 and placed into orbit around Venus in 2006. As ESA...

Past Atmosphere Venus Orbiter

7.47 Good

12

Cluster II

Cluster II was a European Space Agency mission consisting of four identical spacecraft launched in 2000 to study Earth's...

Past Plasma Magnetosphere Formation

7.42 Good

13

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

7.28 Good

14

Spektr-R

Spektr-R was a Russian space radio telescope launched on 18 July 2011 as the centerpiece of the RadioAstron mission. It...

Astronomy Russia Telescope Radio

7.12 Good

15

Akari

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

Survey Telescope Infrared Past

7.07 Good

16

AstroSat

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

Astronomy Telescope Active Multiwavelength

6.79 Fair

17

Cheops

Cheops (Characterising Exoplanet Satellite) is a European Space Agency space telescope launched in December 2019, develo...

Survey Telescope Active Exoplanets

6.73 Fair

18

SMART-1

SMART-1 was the European Space Agency’s first mission to the Moon and the first European spacecraft to use solar-electri...

Past Moon Orbiter Esa

6.68 Fair

19

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

4.33 Poor

20

Schiaparelli EDM

Schiaparelli EDM (Entry, Descent and Landing Demonstrator Module) was a European Space Agency lander flown on the 2016 E...

Mars Past Lander Esa

2.83 Poor