Could World Powers Be Competing Over Alien Tech?
For most of us, the idea of alien life is something we see in movies. We watch stories about flying saucers and interstellar battles, and then we turn off the…
Could Alien Civilizations Exist Inside Stars?
We often picture aliens on distant planets, maybe in a desert world with two suns or a moon covered in ice. We imagine them living on a surface, under a…
The Search for Technosignatures — Clues of Alien Industry
For most of human history, looking up at the night sky was a quiet experience. We saw stars, planets, and the silent, deep black of space. We wondered if we…
Are There Civilizations Older Than Our Galaxy?
We often look up at the night sky and see a vast, dark blanket dotted with tiny, twinkling lights. Each of those lights is a star, and many of them…
What Would Alien Music or Art Sound Like?
We often look up at the stars and wonder if anyone is out there. We think about what they might look like, how they might talk, or what kind of…
Could Aliens Be Living Underground on Mars?
For centuries, people have looked up at the night sky and wondered about the little red dot known as Mars. Is it just a dusty, empty rock, or could it…
What a Day Might Be Like on an Alien World
We often look up at the night sky, at those tiny points of light, and wonder what’s out there. Each star is a sun, and many of those suns have…
Are We Looking in the Wrong Places for Life?
For a long time, when we have dreamed of finding life on other worlds, we have pictured a very specific scene. It is a world that looks a lot like…
The Science of Building Habitats on Other Worlds
For thousands of years, humans have looked up at the night sky and seen not just pinpricks of light, but possibilities. Those points of light are other worlds—planets and moons…
Could Aliens Use Light as Communication?
There’s a quiet moment just after the sun has set, when the sky turns a deep blue and the first star appears. You look up at that tiny, twinkling point…