Phobos as a space elevator for Mars

Building a Martian space elevator would be complicated by the Martian moon Phobos, which is in a low orbit at ~6,028 km above the Martian surface and intersects the Equator regularly, thus getting in the way of a traditional geostationary space elevator. But there is an idea instead to build a space elevator from Phobos itself.

Phobos is tidally locked to Mars (as the Moon is to Earth), where the same side of the moon stays facing the planet. A space elevator could extend down from Phobos to Mars 6,000 km, about 28 kilometers from the surface, and just out of the atmosphere of Mars. A similar space elevator cable could extend out 6,000 km the opposite direction that would counterbalance Phobos. In total the space elevator would extend out over 12,000 km which would be below Areostationary orbit of Mars (17,032 km).

A rocket launch would still be needed to get the rocket and cargo to the beginning of the space elevator 28 km above the surface. The surface of Mars is rotating at 0.25 km/s at the equator and the bottom of the space elevator would be rotating around Mars at 0.77 km/s, so only 0.52 km/s of Delta-v would be needed to get to the space elevator. Phobos orbits at 2.15 km/s and the outer most part of the space elevator would rotate around Mars at 3.52 km/s.

In our speculative Mars Colonization Timeline we have estimated such a Phobos-based space elevator could be built as soon as in 2080s–2090s. In adition to the space elevator there could be built a shuttle port at the summit of Pavonis Mons – the Martian volcano practically on the equator – for shuttles heading to and coming from Phobos space elevator. The summit of Pavonis Mons is standing 14 km above Mars' mean surface level (way above the denser part of the atmosphere), halving the needed trip to the shuttle platform at space elavator's lower tip 28 km above the surface.

Lunar colony in Ad Astra (2019) movie

Ad Astra is 2019 science fiction thriller set in mid-21st century when humanity has started to settle the inner Solar System. One of the most memorable parts of the movie is human colony on the Moon with space pirates :) chasing military rover convoy going to the spaceport on the far side of the Moon.

In the movie a son (Brad Pitt), serving in the military, is sent on a mission to uncover the truth about his famous father's (Tommy Lee Jones) long lost mission near Neptune which now threatens the survival of Earth. In his lonesome and dangerous mission he visits several places including a dynamic but wild human colony on the Moon and a desolate relay station on Mars. Here is a collection of HD images from the Lunar part of the movie:

Exploration rover in Noctis Labyrinthus, Mars by Ludovic Celle

Picture of the Day 06/12/2022 - Large human exploration rover in Noctis Labyrinthus, Mars (a region with maze-like system of deep, steep-walled valleys West of Valles Marineris) by French graphic artist Ludovic Celle. More of his Mars art here.

Lunar colony concept art for Ad Astra by Finnian MacManus

Concept art of the Lunar colony in Ad Astra (2019) movie (science fiction thriller set in mid-21st century when humanity has started to settle the inner Solar System) by film, game and TV concept artist, the founder and creative director of Terraform Studios, Finnian MacManus. More of his art here.

Martian city on terraformed Mars

Martian city on terraformed Mars – a gameplay art from Terraformers – Mars colonization turn based strategy game released in early access on April 2022 and developed by indie game developer Asteroid Lab. In about a week the game will get a major update, including the ability to continue your game after achieving a victory condition, thus further expanding your civilization on Mars.

SpaceX Mars Base Alpha by Caspar Stanley

Picture of the Day 26/11/2022 - SpaceX's Starman looking at Mars Base Alpha from the observation deck of a Starship by Danish freelance 3D artist Caspar Stanley.

Terraformed Mars from human base on Phobos by David A. Hardy

In 1994 the famous British space artist David A. Hardy created several retrofuturistic illustrations of a human base on Phobos, the closest of two natural Martian moons, in front of a terraformed Mars. The illustrations were created as cover art for two separate books. More of Hardy's Mars art here.

"Terraforming Mars" as cover art for Arthur C. Clarke's book "The Snows of Olympus" (1994):

"Terraformed Mars" as cover art (there are several slightly different versions of this illustration) for Carl Sagan's book "Pale Blue Dot: A Vision of the Human Future in Space" (1994):

Animation of SpaceX Starship flying to Mars by iamVisual, narrated by Carl Sagan

YouTuber iamVisual has created a new animation "Wanderers" depicting SpaceX Starship's flight to Mars. The animation is narrated by Carl Sagan, the famous visionary of space exploration and colonization, reading from his 1994 book "Pale Blue Dot: A Vision of the Human Future in Space". Here you can watch the animation and see some images from it:

Eco-futuristic settlement in a Martian canyon by Lukas Yosi Filip

Czech architectural CG artist Lukas Yosi Filip has created a set of images of what could be an eco-futuristic settlement in a terraformed Martian canyon for his Desert Ark concept (the last sanctuaries of human knowledge, culture and research in a dystopian post-climate change world where deserts has taken over the Earth).

Desolate life at a homestead on Mars in Settlers (2021) movie

Settlers (2021) is a British science fiction thriller set in a Martian frontier. A small family of early settlers live alone at a homestead in a valley protected by a force field bubble that keeps breathable air inside, but soon their lonely existence is disturbed by a group of intruders. I won't spoil the plot twists of the thriller, but it has major Wild West vibes there. Here is a collection of HD screens from the movie: