Astronomers have discovered a strange new type of exoplanet known as a Hycean world—an ocean-covered planet with a thick hydrogen atmosphere. One of the most intriguing examples is K2-18b, located 124 ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.

Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

White House registers aliens.gov domain amid Trump's UFO disclosure orders, sparking 16% betting odds and $17 million in speculation on alien confirmation.

Wright-Patterson has played a central role in the US military’s real investigations into mysterious objects in the sky — from Cold War-era research programs to efforts to study what the government now ...