If you like "Stargate SG-1", then you might enjoy...

The Cylons returns and devastate the human population.

Only a ragtag fleet of refugees lead by President Laura Roslin remains. Their only defense is the historic ship Battlestar Galactica, commanded by Commander Adama.

They are searching for the fabled lost thirteenth colony, Earth. But they also has to avoid the Cylon army and infiltrators and deal with political intrigues.

Battlestar Galactica is one of the best TV-Shows of all time.

Even people who hate sci-fi might enjoy this show.

Battlestar Galactica another exiting and serious show with aliens and space travel.

One of its main themes if survival. Humanity is fleeing androids that want to wipe them out. The last remnants of humanity are spread around a few space ships. Stargate SG-1 also has to fight to save humanity sometimes, but that's not the main theme, and all of humanity does not know of the threat.

Battlestar Galactica does not have an episodic story structure. The story is long and lasts multiple seasons.

If you like Stargate SG-1 then Battlestar Galactica is worth checking out. It is not directly similar, but you will most likely love it.

The secret of the Stargate's ninth chevron is discovered.

It opens a wormhole to the unmanned starship Destiny. Its an experiment launched by the Ancients hundreds of millennia ago.

A team of explorers from Earth is sent to investigate this starship. They are led by Dr. Nicolas Rush and Colonel Everett Young.

When they enter the ship by the stargate they get trapped. Unable to call back home or too change its programmed mission, they are forced to complete its original mission.

On Destiny they travel far out into the universe, in a distant galaxy, encountering new races and enemies.

I know some SG-1 fans dislike SG-Universe, but I love it. It a little darker than the other SG shows, but that actually makes it better. Sad it only lasted two seasons.

Stargate Universe is set is the same universe asStargate SG-1. They do have some crossover episodes some of the same characters in both shows, but not as much as in Atlantis.

It is also set on a ship that has a preplanned destination and that has traveled for thousands of years. And it is in a different galaxy.

If you like Stargate SG-1 then you probably already have watched Stargate Universe, if not what are you waiting for? Some people dislike it because it has a slightly darker and more serious tone, but it's very good and definitely worth watching.

Eureka is a small hidden town populated by America's brightest scientists. They work on cutting edge inventions and discoveries.

Sadly for them, but funny for us, in their enthusiasm they tend to be forgetful about the safety surrounding their projects. This usually leads to unnatural and hilarious chaos.

Sheriff Jack Carter and his daughter accidentally stumble upon Eureka, and Jack ends up being hired as the new sheriff in town.

He got more than he bargained for when he has to deal with all the quirky geniuses living in Eureka and their crazy experiments.

This is an absolutely hilarious show with lots of strange inventions. Every episode has some new crazy scientific accidents to be taken care of. I was so sad when it was canceled.

Eureka is not about space and aliens, but it is still an excellent science fiction show. 

It has the hide futuristic science-fiction technology from the rest of the humanity aspect. If you like the humoristic parts and silliness that is mixed into the Stargate SG-1 episodes then Eureka has more of the same. It probably has even more of it.

If you like a Stargate SG-1 without space and aliens, but with a heavier focus on future science, scientist, and a little more humor, then Eureka is a good choice.

Astronaut John Crichton is on an experimental space mission. Its goal is to test a new spacecraft slingshotting around the globe.

He is accidentally sucked into a wormhole. When he emerges he is in the midst of an intergalactic conflict far out in the universe.

John joins the crew on Moya. A living sentient bio-mechanical space ship. They picked him up after his unfortunate wormhole ride.

He has to get to grips with living among alien creatures wielding deadly technology. And if that was not enough, they are being hunted by the Peacekeepers, a merciless military race

Farscape is a cool science-fiction show, but not the best.

I could for some reason not stomach the actor playing John Crichton. I had problems with him when he was on SG-1 also. This is probably just me, and many will likely disagree with me on this. If you have no problems with him, then this show is pretty good.

Farscape is absolutely worth watching.

Farscape and Stargate SG-1 both are existing science fiction shows with space travel and aliens.

They both have similar story structure. Episodic but with a longer read thread and some humoristic elements mixed in with the seriousness.

Farscape have more the crew on the wandering spaceship feel to it. The ship is their base and their home. They are also not government workers, they are fugitives on the run.

If you like Stargate SG-1 then Farscape is worth checking out.

Captain Dylan Hunt and his sentient warship Andromeda have been frozen in time for 300 years. They have been circling around the border of a black hole.

For Captain Dylan Hunt, the time of the Commonwealth was yesterday and not 300 years ago.

He is rescued from the black hole by a salvage ship and its crew. They, of course, have no idea he is still alive and onboard. They are only after the money the can get for the ship.

The crew of the salvage ship is left for dead by their captain. Then they end up joining Captain Dylan Hunt on his quest to restore the Commonwealth and bring unity to the galaxy once again.

I remember I loved it the first time I watched this show. But when I tried to watch it a second time I was bored.

However, I still believe it is worth giving this show a try.

Andromeda is another atmospheric and exiting space travel show. It has aliens, adventure, and heroic missions.

Andromeda is set far into the future where humanity has spread out in space and meat many other alien species.

The main characters have their main base and home on their ship, and they fly around doing missions on it.

If you like Stargate SG-1 then Andromeda is worth checking out. It is not as good, but as mentioned, it's worth checking out.

Agent Pete Lattimer and Agent Myka Bering find themselves transferred to Warehouse 13. It's a massive top-secret storage facility in South Dakota.

This mysterious warehouse contains every supernatural artifact ever collected by the government.

Their new job has them chasing down reports of supernatural activity in search of new artifacts to be safeguarded in the Warehouse.

Warehouse 13 is an entertaining adventure full of fictional and historical objects and gadgets with and without (mostly with) supernatural powers.

I really like this TV show.

Warehouse 13 has more fantasy in it than science fiction. There is something with the thone that makes it kind of similar even if they at first glance ar kind of different. 

Both shows have a shadowy government facility that hides stuff from the rest of humanity. They also have some of the same light humor to them. But it might also be that Warehouse 13 is set in the same universe as Eureka and has lots of crossover with it that makes us add it to the list.

Police detective Josephus Miller is a cynical belter. Belter's are people born and risen in the asteroid belt. His newest assignment is to find Julie Mao, a missing young rich girl turned political activist.

At the same time, James Holden, the first officer of an ice freighter, is witness to an unprovoked attack. An attack by a craft believed to be from Mars (MCRN Federation). News of the attack spreads throughout Earth, Mars and The Belt.

The already tenuous relationship between them is on the brink of no return.

Chrisjen Avasarala is a high ranking United Nations executive and diplomat. Far away from the struggles in deep space, on Earth, she works to prevent war between Earth and Mars by any means.

Police detective Josephus Miller, fright officer James Holden, and diplomat Chrisjen Avasarala, discovers something scary.

A vast covert conspiracy involving the missing woman and the ice freighter's fate which threatens all humanity.

The Expanse is one of the better space TV-Shows.

It has excellent world-building and well-paced story. This show has it all! From high-level political intrigues to low-level street action and with everything in between.

The Expanse is about space but it is still kind of different to Stargate SG-1. It has a strong focus on politics and the potential war between the three main factions of humanity. But something more mysterious is also going on.

The Expanse does not have an episodic story structure and the story is long and grand.

It is not given that you will like The Expanse if you like Stargate SG-1, but it is a good show and worth a try.

Stargate Command has discovered the city of Atlantis in the Pegasus Galaxy.

They send Dr. Elizabeth Weir and Major Sheppard to lead a scientific expedition to Atlantis. Their goal is to discover the secrets of this ancient abandoned city.

When they arrive they find them-self unable to call back to earth. And to make matters worse, they reawaken the Ancients' deadly enemies, The Wraith.

With the help of local allies, they start to uncover their new home's secrets. Can they learn to use this city in their war of survival against the Wraith?

Stargate Atlantis is set is the same universe asStargate SG-1. They also have some crossover episodes and many of the same characters are in both shows.

The main difference is that the story is not set mainly on earth and there are some new types of enemies.

If you like Stargate SG-1 then you probably already have watched Stargate Atlantis, if not what are you waiting for?

Captain Malcolm 'Mal' Reynolds is a former galactic war veteran.

Now Mal is the captain of the transport ship Serenity.

Mal is kind of like Han Solo from Star Wars. A small-time smuggler hiding behind his legal transport services.

His crew consists of. Zoe, his old war buddy. Wash, the pilot. Jayne Cobb, the muscle. Kaylee Frye, the mechanic. Simon Tam, the medic, and his sister River. Inara Serra, a courtesan. And the last one, Shepherd Book, a preacher.

Together they do any jobs, legal or illegal. They travel across the outskirts of outer space sparking up trouble wherever they go.

Firefly is a superb show. I can't fathom why it got canceled after only one season. I want a new show like this.

Watch it now! Just do it.

Firefly is an existing show with some humor mixed in with the seriousness. 

It is more if a space opera and western cowboy mix. The main characters fly around as smugglers and cargo delivery guys.

If you like Stargate SG-1 then you should give Firefly a try. It might not be as directly similar as some of the others on this list is, but you will probably like it.

Commander Sinclair commands a giant five-mile-long cylindrical space station. It orbits a planet in neutral space and has become a diplomatic center for different interstellar empires.

Commander Sinclair has to soften the troubles between different empire's ambassadors. But it's not only trouble between different races he has to handle. Ther is also plenty of internal strife in the Earth Alliance that takes up his time.

In addition to the political troubles, there is also plenty of petty crimes and other more ordinary problems for Sinclair to solve. A few times there are also threats from external sources.

The life of a commander on an interspecies diplomatic space station is not an easy one.

I can't understand why Sheldon Cooper hates Babylon 5, it's an absolutely terrific series. One of the best space series.

So much tension and drama between the different sides. A complex and excellent show.

I guess one thing that makes it so great is that this is a five season-long continuous tale. All the seasons were planned out to make one story before they started producing it. I wish more series could try that.

Babylon 5 has more politics and it is set on a diplomatic space station. It also does not have such a strong episodic formula as Stargate SG-1.

If you like Stargate SG-1 and want something with a grand story with more politics then Babylon 5 is a good show. It still holds up even if it is old.

FBI agent Olivia Dunham teams up with a formerly institutionalized scientist Dr. Walter Bishop and his son Peter Bishop to investigate weird crimes. Crimes that are part of a larger pattern.

Dr. Walter Bishop`s knowledge of fringe science that he worked on before he got institutionalized comes in handy when the team faces a rapidly spreading series of unexplained phenomena.

Fringe is a really good science fiction crime show.

They get into so many cool and crazy things while working on their cases. They try to explain it in a scientific way, as much as it is possible.

Fringehas some of the trouble of the week elements to it, but it also has a fat red thread going over the show.

Fringe is not about space and aliens. But it has a kind of gate traveling. Only they travel to a parallel dimension instead of other planets.

Fringe is not as similar as some fo the other suggestions in this article, but it's a good show that you probably will like if you enjoyed Stargate SG-1.

A trio of bounty hunters lives in a solar system ruled by a tyrannical corporation known only as The Company. The Company is a class-based corporation that rules the system with an iron fist.

The bounty hunter trio lives hard, party all night, and they work for an Independent interplanetary organization of assassins and retrieval experts called R.A.C.

People working for R.A.C. are known as reclamation agents or more commonly Killjoys. Killjoys only follow one law, and that is "The Warrant is all". Warrants are official documents issued by the R.A.C. which authorize Killjoys to conduct missions.

The whole system is verging on revolutionary war against The Company and the trio's own bloody pasts is starting to catch up with them. In this chaos, the three Killjoys struggle daily to maintain their R.A.C neutrality.

Killjoys is an exiting space western kind of show. Character development can sometimes take second place to world-building. Personally I would prefer more focus on character development, but the story is stellar.

Initially, it reminded me a little of Firefly, only not as good. But even if it is not as good as Firefly it is still a must-see show for science-fiction fans.

Ten years before Kirk, Spock, and the Enterprise, the USS Discovery search for new worlds and lifeforms.

Michael Burnham is second in command on a starship that stumbles upon a Klingon ship. She brakes command and commits treason in an attempt to stop a war against the Klingons, but she fails and she ends up getting the blame for the war.

On her way to prison, she is picked up by the research vessel Discovery and given a new chance.

I love this new Star Trek series, but I know many others hate it. I have not seen too much of the other Star Trek series, just an episode here and there, so that might be a reason why I don't hate it.

I think Star Trek: Discovery is one of the better space Sci-Fi series in recent years.

In the future, the human race is about to die out. But a new scientific Breakthru is discovered.

It's a technology that lets a person send their consciousness back through time and directly into people in the 21st century

The Travelers set out to use this time-twisting technology to save humanity.

These Travelers take over the consciousness of people when they are about to die. They use their knowledge of their death to avoid it and take over their lives.

With only knowledge of history and social media profiles, they have to blend into our society and save humanity at the same time.

Travelers is a decent show with decent writing and characters.

It's a good twist on the time-travel formula, many of the time travel show just follow the place and time of the weak formula, but Travelers avoid that.

Gene Starwind and his partner Jim Hawking run a small business on the planet Centinel 3.

They claim that they can do any job.

One day they are hired by a woman to be her bodyguard. Unknown to them, she is an outlaw in disguise, which is kind of awkward because Gene makes money on the side by bounty hunting.

They are unwillingly trusted into a mystery where they have to deal with intergalactic cops, pirates, aliens, and assassins. Luckily for them, they have the galaxy's most advanced ship on their side.

Outlaw Star ranges from light-hearted humor to dark philosophical questioning.

Gene Starwind kind of reminds me of Starlord, which is a very good thing.

If you are into animes then you should definitely give this one a try.

Spike Spiegel is a bounty hunter.

Together with his partners Jet Black, Faye Valentine, Edward, and their dog Ein, they hunt across the galaxy. They are looking for any high bounty fugitives to bag.

This is one of the classics must-see anime.

Cowboy Bebop is recommended even if you are not a big fan of animes.