swap_horiz ACE (Advanced Composition Explorer) Alternatives

1

Explorer 1

Explorer 1 was the first artificial satellite successfully placed in Earth orbit by the United States. Launched in 1958,...

Cold War Satellite Nasa Earth Orbit

9.2 Excellent

2

Mercury Friendship 7

The Mercury Friendship 7 was a single-seat capsule designed for crewed orbital missions during the Cold War. It carried...

Cold War Nasa First Us Orbit Crewed

9.2 Excellent

3

Apollo Command/Service Module

The Apollo Command/Service Module was a critical component of NASA’s manned lunar missions during the Cold War era. It c...

Cold War Nasa Moon Crewed

9.2 Excellent

4

Apollo Lunar Module

The Apollo Lunar Module was a specialized spacecraft developed by NASA to enable crewed landings on the Moon. This two-s...

Cold War Nasa Moon Crewed

9.2 Excellent

5

Opportunity rover

The Opportunity rover was a NASA spacecraft designed to explore the Martian surface. Launched in 2004 as part of the Mar...

Endurance Nasa Mars Rover

9.2 Excellent

6

Curiosity rover

The Curiosity rover is a NASA spacecraft exploring Mars. Launched in November 2011, it landed in Gale Crater in August 2...

Nasa Mars Rover Current

9.2 Excellent

7

Ingenuity helicopter

The Ingenuity helicopter is a rotorcraft developed by NASA for exploration on Mars. It represents a groundbreaking achie...

Helicopter Nasa Mars First Flight

9.2 Excellent

8

Cassini

The Cassini spacecraft was a joint NASA/ESA/ASI mission that orbited Saturn from 2004 to 2017. It provided unprecedented...

Science Flagship Nasa Saturn

9.2 Excellent

9

Huygens probe

The Huygens probe was an ESA-designed lander carried by the Cassini spacecraft. It achieved a historic touchdown on Tita...

Science Titan Lander Atmosphere

9.2 Excellent

10

ISEE-3 / ICE

NASA spacecraft launched in 1978 as the first stationed at a Sun-Earth Lagrange point; repurposed as ICE, it flew throug...

Science Nasa Comet Probe

8.5 Great

11

MMS (Magnetospheric Multiscale Mission)

NASA's Magnetospheric Multiscale Mission, launched in 2015, uses four identical spacecraft flying in close formation to...

Nasa Current Magnetosphere Probe

8.3 Great

12

GRAIL Ebb

One of NASA's twin GRAIL spacecraft launched in 2011 to map the Moon's gravitational field in finer detail than any prev...

Science Nasa Gravity Moon

8.1 Great

13

GRAIL Flow

The second of NASA's twin GRAIL spacecraft that together with Ebb produced the highest-resolution gravitational map of t...

Science Nasa Gravity Moon

8.1 Great

14

STEREO-A

One of two NASA spacecraft launched in 2006 to provide the first stereoscopic views of the Sun and solar phenomena from...

Science Nasa Sun Probe

8.1 Great

15

Wind spacecraft

A NASA spacecraft launched in 1994 and stationed near the L1 Lagrange point to study solar wind properties and their int...

Science Nasa Solar Wind L1

8.1 Great

16

DSCOVR

NOAA/NASA spacecraft stationed at the Sun-Earth L1 Lagrange point since 2015, monitoring solar wind and capturing full-d...

Solar Wind L1 Probe Nasa Noaa

8.0 Great

17

OAO-2

NASA Orbiting Astronomical Observatory 2, launched in 1968, the first successful space-based ultraviolet telescope, prov...

Cold War Science Nasa Observatory

7.8 Good

18

Psyche spacecraft

NASA spacecraft launched in October 2023 en route to 16 Psyche, a metal-rich asteroid in the main belt thought to be a r...

Science Nasa Current Orbiter

7.3 Good

19

STEREO-B

One of two NASA spacecraft launched in 2006 for stereoscopic solar observation; contact was lost in 2014 and briefly res...

Nasa Sun Probe Stereo Imaging

6.8 Fair

20

CONTOUR

NASA Comet Nucleus Tour spacecraft launched in 2002 that was lost shortly after its departure burn from Earth orbit due...

Science Nasa Comet Probe

3.1 Poor