You've seen the famous aliens, planets and scientists, but now it's time to venture even farther into the depths of space.

Oscar-winning filmmaker Steven Spielberg recently said that he believes aliens from outer space have “absolutely” been on Earth.

The 21st century has produced no shortage of genuine sci-fi masterpieces, from poetic dramas like Arrival to crowd-pleasers like Project Hail Mary.

Two different ways to tell the same story. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Science fiction is not monolithic. There are, in fact, two major sub-genres that divide sci-fi — hard sci ...