A new UFO documentary charting the reasons for the rise of alien activity is released for UFO Day on July 2 – and reveals a ...

Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some of the strangest exoplanets that scientists have discovered so far.

From a scorching super-Earth to a football-shaped world, here are the greatest alien planet stories of 2022. 1. 5,000th confirmed exoplanet at last NASA confirmed 5,000 exoplanets have been found ...

Best-ever sign of alien life found as scientists say they are ‘99.7% sure’ & believe planet could be ‘teeming’ with ETs They used a genius sky-scanning trick to find it Sean Keach , Head ...

Venus, the brightest object in Earth's night sky besides the moon, is our solar system's most reflective object, enrobed in toxic sulfuric acid clouds. Venus reflects about 75% of incoming light ...

Is there really alien life on this exoplanet? We asked 10 experts. A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b.

Under Alien Skies Philip Plait W.W. Norton & Co., $30. Why is the sky blue? I remember asking my parents that question as a kid. When the sun’s rays hit the blanket of air that encircles the ...

A massive, gassy planet 1,300 light-years away is so hot, its clouds are made of quartz crystals. Studying it could help scientists understand more about how clouds form in extreme alien environments.

Scientists think a planet may have crashed into Earth 4.5 billion years ago, creating the moon. This alien planet, Theia, was thought to have completely disappeared in the collision.

Sci-Fi games offer deep exploration and resource management Being stranded on alien planets is a common theme in games Titles ...