Mobile Suit Gundam 00I ("I" for Innovades) is the manga sequel and replacement for Mobile Suit Gundam 00F. It was also written by Tomohiro Chiba and illustrated by Kōichi Tokita. The story runs concurrent with Season 2 of Mobile Suit Gundam 00 and tells the story of a young man, named Leif Recitativo, who was ordered by Veda to gather a group of living bio-terminals called Innovades. Members of Celestial Being's shadow group Fereshte (which is now disbanded and rejoined the main organization) reappear as a supporting cast to the main characters. (Source: Gundam Wiki)

Robotic armed freedom fighters fight for Earth's future in this intergalactic tale of the pursuit of freedom. After Earth's overpopulation sends humans offworld to live in space stations, they are abused by the controlling power—the Earth Federation government. Colonists form the Zeon Dukedom to resolve their disputes and wage the One Year War for independence. For over 20 years, the world of Gundam has reigned over all other mecha anime and manga series. Mobile Suit Gundam: Blue Destiny continues the Gundam legacy with the adventures of Federal Forces second lieutenant Yu Kajima and his special unit of mobile suits.

The year is 2307 A.D. In the shadows of Celestial Being, another group of Gundam Meisters operates, hoping to put an end to warfare and strife themselves. Chall Acoustica, director of Fereshte, together with criminal Fon Spark set out to change the world through their own means, but things are not as they seem as they run into Team Trinity and get issued an ultimatum... to hand over the 0 Gundam's GN Drive.

The year is CE 73. In the midst of the second EA-ZAFT War, Gai Murakamo leads his Serpent Tail mercenary unit into the Republic of East Asia. Soon enough, a ZAFT unit enters the war-torn country with a squad of ZAFT soldiers....

From Anime News Network
It is October, Cosmic Era 71. The Second Battle of Yakin Due has brought about the end of the war between Earth and PLANT. Jess Rabble, a mobile suit pilot, journalist and cameraman, wishes to photograph the truth of the world from a mobile suit's perspective. During an encounter with the Junk Guild, he meets Lowe Gear, who offers him the newly completed Astray Out Frame in order to fulfill his goal. Now, with Lowe's talking computer '8' at his side, Jess ventures off to all corners of the Earth to film the new battles the world faces.

Note: Volume 1 extra chapter 'Special Scoop.01 - Ed the Ripper' remains untranslated

A series of short stories that take place throughout the Universal Century Era.

From Tokyopop: The One Year War between the Earth Federation and the Principality of Zeon has begun--and the newest Mobile Suits are tested for battle! Captain Matt Healy leads his team into dangerous territory as the leader of a Special Forces Experimental Unit. Ken Bederstadt is a Foreign Legion Lieutenant working in alliance with Zeon. These two heroes are trying to keep everyone alive...for tomorrow! There are 2 editions of this manga, the 2003 edition (same as Tokyopop version) and 2005 "complete" edition with 2 additional chapters - a prequel and a conclusion to the storyline

The events chronicled in this manga are also depicted in its own campaign in the Gundam: Meguriai Sora game for Playstation 2 (released in the US as Gundam: Encounters in Space), as well as a novel by Kazuki Miyamoto.

Some of the characters are seen briefly in Mobile Suit Gundam - Lost War Chronicles manga.

Note: A masterpiece collection titled Kidou Senshi Gundam Gaiden - (Uchuu) Sora, Senku no Hate ni... was release in 2015.

From TokyoPop:

After having finished a job at Research Colony Mendel, a mysterious mobile suit approaches the colony--likely with hostile intent. When Lowe Gear intercepts in the Red Frame, the pilot opens fire... and thus begins another exciting adventure set in the popular Gundam Seed universe! Mobile Suit Gundam SEED X Astray continues where Gundam Seed Astray R left off!

A three-man team of Martian-based Coordinators led by Agnes Brahe commands the Acidalium. The trio gets involved in the second EA-ZAFT War as Agnes controls the Voiture Lumiere-based mobile suit known as the GSF-YAM01 Δ Astray.

The Cosmic Era. Coordinators, born through genetic modification and Naturals, who are born naturally. Both experienced two great wars. People devoted themselves to fighting for things they believed in and things they should protect. Fighting gives birth to hatred and hatred in turn gives birth to sorrow. The battlefield swallows the fate of the soldiers and turned into the gravestone to an invisible future. Although a transient piece arrived in the end, the scars of war run deep. Yet in such a world, there were those who walked a path they strongly believed. Engineers giving their lives and roles to that which was discarded and destroyed: Junkers. Those who fight for those without power: Mercenaries. Those who convey the truth to the people: Journalists. Even if they deviate from the noble path, they will follow a path they believe in according to their own beliefs -Astray.