Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

For decades, physicists have believed they had identified the fundamental forces shaping the universe, gravity, ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Gravity, electromagnetism, the strong nuclear force, the weak nuclear force. For decades, physicists have recognized exactly ...

The interplanetary comet 3I/ATLAS is remarkably rich in a specific type of water that contains deuterium, meaning it came ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Planetary scientists are ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

I’m a planetary scientist who was born the year of Sputnik’s launch. Over the course of my 40-year career, I’ve witnessed not one but at least five separate revolutions that fundamentally transformed ...

Learn more about the bizarre geological features found throughout our Solar System.

The birth of a new solar system may have been caught on camera. About 1,400 light-years from Earth sits a young sunlike star surrounded by cooling gas and teensy silicate minerals. These mineral ...