Science Fiction & The International Women's Day

I love science fiction stories and on this day, The International Women's Day, I had to rack my brains to come up with some famous women who specialized in writing science fiction; the first and not at all least I remembered was Mary Shelley and her famous story "Frankenstein." That is no small or insignificant story as it has been remembered since its inception in 1818. As for other female writers, their names roll off my tongue, names such as Beatrix Potter, Emily Bronte, Louisa May Alcott and easily come to mind for the more romantic, familial, or children themed subject matter, not to say these women did not struggle to get published, their efforts and works are remarkable. However, a stark absence of more female writers of science fiction from earlier times is missing amongst these other wonderful writers.
It appears that more women sci fi writers were published after the 1960's and the first to come to my mind is Margaret Atwood albeit she denies being such a writer, and Ursula K. Le Guin famous for "The Left Hand of Darkness," and many other novels.
I wish on this day in the future, I will be able to not only list the famous women authors of fiction off the top of my head, but also many famous women science fiction writers as well who will eventually write stories that will transport us to new worlds, inspire us to look differently at the positives and negatives of science, and invite us into strange dystopian futures. I do look forward to those stories and I am convinced they are being written at this very moment and soon will be published.