RIGELLIANS PLANT PEOPLE

Planet of Origin: Supposedly a planet oribiting the star Rigel

The Rigellians are a sentient vegetal species with some animal traits which developed a spacefaring civilisation in the 3rd millenium and were then a bit more advanced than humanity. They are known to turn from green to violet when afraid.

Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.

The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. The Rigellians were the first of a wave of invaders that attacked Earth, arriving in 3207, as a migration fleet of thousands of  spaceships fleeing more advanced species which had invaded their own world. They landed in the jungles of Matto Grosso and eradicated more than a billion people before being themselves destroyed.

BETELGEUSIAN CRABMEN

Planet of Origin: Supposedly in planet orbiting Betelgeuse

The Crabmen are a vaguely humanoid crustacean species that developed a spacefaring civilisation as of the 4th millenium. They possess large pincer-like hands and antennas that can spew a deadly green acid and had a geometric language.

Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.

The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. The Betelgeusians were the second of a wave of invaders  that attacked Earth, arriving in 3241, as a migration fleet of 100 000 spaceships fleeing their homeworld's destruction. They were defeated by mold and spores which attacked the softr skin under their shells. They nevertheless reduces the Earth population to 2 billions people.

MARTIANS

Planet of Origin: Mars

The Martians are a degenerate species that had a long time ago developed a glorious civilisation and which was barely surviving in the rare spots on their planet that still had some vegetation as of the 4th millenium.

Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.

The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. For some reasons, no mention is given that the invaders take any interest on settling on Mars.

VENUSIANS

Planet of Origin: Venus

Veusian lifeforms had not acheived sentiance as of the 4th millenium and were only primitive savage monstrous lifeforms hidden in the planet's jungles.

Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.

The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. For some reasons, no mention is given that the invaders take any interest on settling on Venus.

ANTARIANS

Planet of Origin: Supposedly a planet orbiting the star Antares.

Antarians are a sentient non-humanoid species which has developed an highly advanced technological civilisation. The look like man-sized gelatinous cylinders with a spherical protuberance at its top with two antennas which can emit deadly rays. They possess some kind of ethereal shell whih protects them from harm, emit anti-matter particles and allows them to travel thourhg space faster than the speed of light.

Source: Beyond Infinity, by Nat Schachner Aka Chan Corbett, in Astounding Stories, Jan 1937.

The story tells of a series of invasion that befell Earth starting in 3195, as the universe unexpectedly starts to collapse on itself and the surviving species rush toward the worlds who are still unaffected by the phenomenon to delay their extinction. The Antarian were the third and last of a a wave of invaders, arriving on Earth in 3326, shortly before humanity's survivors found a way to project themselves outside the dying universe and into the next.