Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

For decades, we believed there were nine planets in our solar system—until Pluto was reclassified in 2006. But what if ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

Is Earth really exceptional?  A new book seems to reaffirm that notion.  But given the right conditions, primitive life may be a mere byproduct of biophysics.

Scientists have officially confirmed the discovery of a new super-Earth, HD 20794 d, located just 20 light-years away. This ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to the bottom of whether Pluto is a planet, I tracked down planetary scientist ...

The countdown to the romantic holiday continues, and astronomers are eagerly anticipating Venus, the planet named after the ...

This is a win-win-win for people, their pocketbooks and the planet. Integrating solar seamlessly ... And a typical solar ...

Two exciting new studies detail the life-supporting contents of a 4.3-ounce sample of the asteroid Bennu. The OSIRIS-REx ...

Finding this organic material on Benu means that the building blocks of life could have come from an asteroid, and in our ...