Planetary nebulae are not planets, but are named for their appearance through early telescopes. Our Sun will become a white dwarf star surrounded by a planetary nebula in the distant future. The Owl ...

Scientists have uncovered the hidden core of one of our galaxy’s most spectacular phenomena, giving scientists a rare chance to see what may one day happen to our own sun. The James Webb Space ...

TEMPE, Ariz. a Quick: What’s the order of the planets in the solar system? Need a little help? Maybe the following mnemonic rings a bell: “My Very Educated Mother Just Served Up Nine Pizzas.” It’s ...

could have produced conditions that allowed rapid mineral hydration. Fred J. Ciesla, Dante S. Lauretta and Lon L. Hood of the UA and Barbara Cohen of the UH collaborated in the study. Lauretta and ...

The source of Earth's water is an enduring mystery that extends to exoplanets and the notion of habitability. In broad terms, Earth's water was either part of the planet from the beginning of its ...