Sensational Scarlet Spacefarers: Chris KL-99 and Astra

Chris KL was the first human baby to be born in space, and after his parents had been lost in their interstellar travels which left him an orphan, this encouraged the young man to join the Space Academy. As his rating with 99% perfect, his name was altered to Chris KL-99, at which point he traveled to various planets with the assistance of Halk the Martian and Jero the Venusian aboard their vessel the Pioneer. Charting these so that one day inhabitants of his parents' homeworld of Earth-One might colonize these. Among those whom he met were Superman and the Forgotten Heroes, displaced from the 20th century when they ventured to Chris' 21st century era. On this occasion, he met another spacefarer in the legendary Space Cabbie, a pilot who transported individuals throughout the solar system.

Astra was originally one of several young girls, rescued from their native Earth-Two as orphans by the Amazons and brought to the world of Infanta. There, underneath the unique atmosphere of that planet, these girls grew only to young adolscent as time seemed to stand still there. Astra was the preeminent lass in their midst and was thus made queen of the Infantas. When called upon to assist the women who had earlier saved them, Astra and the Infantas twice ventured to Earth-Two and worked alongside Wonder Woman. Inspired by the superheroines' example, during the 21st century Astra left her people and moved to Earth-Two, whereby she aged to young womanhood and became a reporter for the Transvideo News. She had several adventures alongside another spacefarer in Professor Elliott, Otha the Venusian and Plutonians. 

Astra's former female subjects the immortal Infantas would undoubtedly have appointed a new queen, just as the immortal Zamarons had throughout the centuries. Each Zamaron queen was granted the Star Sapphire jewel, giving her tremendous powers. Women who wore this item and adopted this alter ego would plague the Earth-One Green Lantern repeatedly throughout the years. One of the former Infantas would in fact become a version of the Star Sapphire herself, battling Earth-Two's Flash repeatedly using a variation of the jewel from her universe. She was evidentally banished to another dimension by the Infantas, as she appeared around the same time period that Astra had been ruling them... prior to Astra's departure to the world of her birth a century later.