Aliens or no? The Tuatha De Danann

Tuatha De Danann History

Early Peoples of Ancient Ireland
Look for Agnoman of Scythia and Nemed in these. The Tuatha are supposedly descended from Nemed of Scythia which is interesting. Partholón was suposedly the leader of the 2nd group to invade Ireland. There are two versions of his history one of which where he loses an eye after murdering his father Sera, King of Greece. (Hmmm...sounds like Odin when he gave up his eye for the knowledge of the runes).
Partholon supposedly defeated the Formorians, led by Ciocal, at Magh lthe, in the 1st battle fought in Ireland.

Partholon
Nemed - Interesting note; Nemed's 1st born son was named Artur. 9 yrs later, after living in Ireland, Nemed died of plague.
Nuada Airgetlám - 1st King of the Tuatha Dé Danann. He and the Tuatha encountered the Fir Bolg, current inhabitants at the time of Ireland. The Dagda at this time was a member of the Tuatha and defended Nuada in battle. Lugh later joined the court of the Tuatha to aid in the battle against his grandfather Balor and Bres. In the passages I read they refer to Lugh as a multi-talented youth lending back to his duties as a Celtic god.

Supposed the Tuatha De came from four Northern cities (they didn't say where exactly from or where these cities were but they give them names) Falias, Gorias, Murias, Finias (Dirge of the 4 Cities).

Balor (The Evil Eye) was the king of the Fomorians.
Lugh Lamhfada -
^---Son of Ethlinn (daughter of Balor) and Cian of the Tuatha De Danann.
^---Grandson to Balor and his destroyer.
Birog rescued Lugh after Balor tried to drown him and his other brothers, managing only to save him, adopted him, and named him Lugh and he was made a member of the Tuatha De. In the battle against his grandfather, after Balor killed Nuada in battle, Lugh took over as king of the Tuatha in his stead.

The Tuatha De Danann - Family Tree?

Druid Grove - Falias, Gorias, Murias, and Findias - Might be of interest.
Daoine Sidge / Tuatha De Danann?
Pantheon.org - Tuatha De Danann / Daoine Sidhe

I'm still adding on to this so hang on. Wikipedia is not going to be my only source of info but its good as a quick general reference for finding pieces of evidence to look for based off the information they provide on their site.