swap_horiz NEOWISE Alternatives

1

Very Large Telescope

The Very Large Telescope (VLT) is an enormous ground-based optical and infrared observatory located in Chile’s Atacama D...

Optical Infrared Chile Ground Based

9.8 Brilliant

2

Cassini-Huygens

The Cassini-Huygens mission, operated by NASA and ESA, was a space-based observatory dedicated to studying Saturn and it...

Decommissioned Nasa Planetary Space Based

9.8 Brilliant

3

Gaia

The Gaia observatory is a space-based mission operated by the European Space Agency. It meticulously surveys our galaxy,...

Survey Optical Space Based Astrometry

9.7 Brilliant

4

Kepler Space Telescope

The Kepler Space Telescope was a NASA observatory launched in 2009. It monitored over 150,000 stars for dips in brightne...

Decommissioned Optical Nasa Space Based

9.6 Brilliant

5

Parker Solar Probe

The Parker Solar Probe is a NASA observatory spacecraft investigating the Sun’s outer atmosphere, the corona. Launched i...

Solar Nasa Space Based Heliophysics

9.6 Brilliant

6

Paranal Observatory

The Paranal Observatory is a key component of the European Southern Observatory’s Very Large Telescope (VLT). Located in...

Optical Infrared Chile Ground Based

9.5 Brilliant

7

European Extremely Large Telescope

The European Extremely Large Telescope (ELT) is a next-generation ground-based observatory located in Chile’s Atacama De...

Optical Infrared Chile Ground Based

9.5 Brilliant

8

Galileo spacecraft

The Galileo spacecraft was a NASA observatory designed for planetary exploration of Jupiter and its moons. Launched in 1...

Decommissioned Nasa Planetary Jupiter

9.4 Excellent

9

Space Telescope Science Institute

The Space Telescope Science Institute (STScI) is a research observatory located in Baltimore, Maryland. It serves as the...

Research Space Optical Nasa

9.4 Excellent

10

SOHO

SOHO is a space-based observatory operated jointly by NASA and the European Space Agency. It monitors the Sun’s activity...

Solar Nasa Space Based Esa

9.3 Excellent

11

Spitzer Space Telescope

The Spitzer Space Telescope was a NASA space-based observatory operating from 2003 to 2020. It utilized infrared light t...

Survey Decommissioned Nasa Infrared

9.2 Excellent

12

Fermi Gamma-ray Space Telescope

The Fermi Gamma-ray Space Telescope is a NASA observatory orbiting Earth. It detects high-energy gamma rays, providing i...

Survey High Energy Nasa Space Based

9.1 Excellent

13

WISE

WISE was a NASA space observatory designed to conduct a comprehensive all-sky infrared survey. Launched in 2009, it scan...

Survey All Sky Nasa Infrared

8.8 Great

14

Roman Space Telescope

The Roman Space Telescope is a NASA observatory designed for wide-field surveys of the universe. Utilizing both optical...

Survey Optical Nasa Infrared

8.8 Great

15

International Ultraviolet Explorer

Joint NASA/ESA/UK ultraviolet space observatory launched in 1978 that operated for nearly 19 years, pioneering UV spectr...

Space Historical Nasa Spectroscopy

8.6 Great

16

Euclid Space Telescope

ESA space telescope launched in July 2023 designed to map the large-scale structure of the universe and probe dark energ...

Cosmology Space Optical Infrared

8.4 Great

17

SOFIA

NASA/DLR infrared observatory aboard a Boeing 747SP aircraft carrying a 2.7-meter telescope, observing above most atmosp...

Historical Nasa Infrared Airborne

7.4 Good

18

Canada-France-Hawaii Telescope

Operating atop Mauna Kea since 1979, this 3.6-meter optical/infrared telescope represents a joint scientific partnership...

Survey Optical Infrared Mauna Kea

7.2 Good

19

NASA Infrared Telescope Facility

Located on Mauna Kea, this 3.0-meter telescope has been operated by the University of Hawaii for NASA since 1979, servin...

Optical Nasa Infrared Mauna Kea

6.8 Fair

20

United Kingdom Infrared Telescope

Completed on Mauna Kea in 1979, this 3.8-meter telescope was the world's largest telescope dedicated solely to infrared...

Survey Infrared Mauna Kea Ground Based

6.2 Fair