Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

That distinction, survival versus livability, is the hard truth behind headlines about stars consuming planets. A world does not need to be swallowed to become uninhabitable. Long before any terminal ...

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

NASA says Earth is about halfway through its lifespan. Scientists explain how solar changes could affect habitability, oceans, and the planet’s future over billions of years ...

Astronomers have detected a smelly gas best known for the odor of rotten eggs—hydrogen sulfide—in the atmospheres of four giant planets far beyond our solar system. While the gas may be unpleasant on ...

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have for the first time identified hydrogen sulfide gas in the atmospheres of three gas-giant exoplanets orbiting HR 8799, a ...

A distant star dimmed by 97% for nearly 200 days. Astronomers say giant rings around a brown dwarf or super-Jupiter may explain it.

NASA describes deep hydrogen compression that eventually forms conductive metallic liquid, making Jupiter feel less like Earth and more like a continuous gradient of states. That alone breaks the old ...

Astronomers have finally figured out how the most common types of planets in our galaxy are formed—by watching a set of baby planets grow up in real time. These worlds, found in a young star system ...

So maybe - just maybe - sports commentators, we are not kidding you when an Italian skier goes really fast down a giant ...

According to these calculations, Earth's total lifespan will be about 9.5 billion years.