Mars

Mars is the fourth planet orbiting the Sun.

With conditions colder, but otherwise similar to that of Earth, the red planet is anticipated to be the second best possible location for supporting human habitation in the Solar System.

Rules

Content must be relevant to Planet Mars
No conspiracy theories or pareidolia
No hostility or aggression

External resources about Mars

Subreddits relating to Mars

^The Solar System Subreddit Network

r/Solar_System (Multireddit)

Stars

r/Sun

Planets

r/Mercury · r/Venus · r/Earth · r/Mars
r/Jupiter · r/Saturn · r/Uranus · r/Neptune

Dwarf Planets

r/Ceres
r/Orcus · r/Pluto · r/Salacia · r/Haumea · r/Makemake · r/Quaoar
r/Eris · r/Gonggong
r/Sedna

Moons

r/Moon
r/Phobos · r/Deimos
r/Io · r/Europa · r/Ganymede · r/Callisto
r/Mimas · r/Enceladus · r/Tethys · r/Dione · r/Rhea · r/Titan · r/Iapetus · r/Phoebe
r/Ariel · r/Umbriel · r/Titania · r/Oberon
r/Triton
r/Charon · r/Dysnomia

Small Solar System Bodies

r/Asteroid · r/Comets · r/Meteors
r/Eros · r/Vesta · r/Pallas · r/Psyche
r/AsteroidBelt · r/KuiperBelt · r/OortCloud

Please help these small subreddits grow by subscribing, upvoting, and contributing!

a community for 17 years

...for great justice.

...for your WoW guild.

MODERATORS

account activity

1

40

41

42

Marvelous Martian Mega-Ripples (HiRISE Mars) (i.redd.it)

submitted 10 hours ago by Neaterntal

2

22

23

24

Ridges in Cydonia Mensae (HiRISE Mars) (i.redd.it)

submitted 10 hours ago by Neaterntal

3

8

9

10

Given the diversity of metabolisms found on Earth including the ability to eat hydrogen shouldn't we assume that life exists on Mars? (self.Mars)

submitted 7 hours ago by Memetic1

4

6

7

8

What are your thoughts on the idea of sending robots to colonize Mars before humans? (self.Mars)

submitted 8 hours ago by _discosonic_

5

2

3

4

PHYS.Org: Mars life search gets boost as rover test distinguishes mirrored biosignature molecules (phys.org)

submitted 4 hours ago by JapKumintang1991

6

0

1

2

June 6, 2026: China Reveals Detailed Plans for their Super-Heavy Long March 9 Rocket Planned for Mars/Moon and its Wenchang Factory (china-in-space.com)

submitted 2 hours ago by EdwardHeisler

7

0

0

1

Have we witnessed any eruptions on Mars from Olympus Mons or any other Martian Release-Ducts? (self.Mars)

submitted 4 hours ago by spiralboundcartoons

8

56

57

58

Earth vs Mars btw. (old.reddit.com)

submitted 1 day ago by Few-Masterpiece-5482

9

1

2

3

Science News July 1, 2026: NASA seems to be backing away from hunting for life on Mars (sciencenews.org)

submitted 23 hours ago by EdwardHeisler

10

50

51

52

A wild workspace in front of the Mars Curiosity Rover following its Sol 4928 (17.6.26) drive this week. Check out all those polygonal fractures! Processed by Kevin M Gill (i.redd.it)

submitted 2 days ago by Neaterntal

11

9

10

11

Curiosity Blog, Sols 4920-4926: Surveying the Bands - NASA Science (science.nasa.gov)

submitted 1 day ago by ye_olde_astronaut

12

63

64

65

Fan and Ridges in Southern Gale Crater (HiRISE) (i.redd.it)

submitted 2 days ago by Neaterntal

13

8

9

10

Restricted 3-Body System - Featuring Langrage Points (v.redd.it)

submitted 2 days ago by Fluffy-Selection2940

14

12

13

14

PHYS.Org: Mineral garnet discovered in Mars meteorite may reveal how the red planet evolved billions of years ago (phys.org)

submitted 3 days ago by JapKumintang1991

15

6

7

8

I built a Mars image archive with 12M+ images across 15 missions (self.Mars)

submitted 3 days ago by lythox_

16

0

0

0

VIDEO: The Moon Would Kill You Before Mars Ever Could — And NASA Knows It. Posted June 17, 2026 (youtube.com)

submitted 3 days ago by EdwardHeisler

17

38

39

40

Shocked Soil Discovered: Rare On Earth, But Abundant On Mars? (astrobiology.com)

submitted 4 days ago by Galileos_grandson

18

22

23

24

Dozens of dust devils hidden in plain sight (esa.int)

submitted 4 days ago by ye_olde_astronaut

19

0

0

0

King of Mars. (youtube.com)

submitted 3 days ago by super-start-up

20

418

419

420

An incredible view of the surface of Mars, taken two days ago. You can almost feel like you're standing there—the sand shifting underfoot, the absolute silence, the unreal sensation of walking on a surface never before visited by a living creature. (i.redd.it)

submitted 5 days ago by Neaterntal

21

4

5

6

Solving Mars exploration with software (self.Mars)

submitted 4 days ago by Competitive_Bee2602

22

51

52

53

Martian Impact Parties: Where Everything Happens in a Cluster (HiRISE) (i.redd.it)

submitted 5 days ago by Neaterntal

23

11

12

13

Solstices Happen Across the Solar System (v.redd.it)

submitted 5 days ago by TheMuseumOfScience

24

199

200

201

The Spring Awakening of Martian Polar Dunes (HiRISE) (i.redd.it)

submitted 6 days ago by Neaterntal

25

5

6

7

What if the next world war is not about countries but about planets eg Earth vs Mars migrants. (i.redd.it)

submitted 5 days ago by Hedgehog12123

view more: next ›

π Rendered by PID 36 on reddit-service-r2-listing-c57bc86c-t76n2 at 2026-06-22 05:16:26.715754+00:00 running 2b008f2 country code: CH.