From a distance, Biosphere 2 emerges from the cacti and creosote of the Sonoran desert like a gleaming oasis, a colony of ...

As of Tuesday, Sept. 23, the moon phase is Waxing Crescent, and according to NASA's Daily Moon Observation, there's just 3% ...

A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction.

Across cultures, centuries, and belief systems, stories of death experiences have stirred fascination, fear, and faith in ...

For anyone in Hawaiʻi this weekend, the sky offers a rare show. Saturn, the ringed giant, will rise bright in the evening and ...

Is it a full moon tonight? Wondering what is the planet and bright star shining next to the moon? Here's what to know and how ...

The Earth's protective ozone layer is on track to fully recover by mid-century, according to a report from the UN's World ...

These celestial wonders can tell us a lot about the state of the atmosphere at home on Earth as well as on other planets.

Fomalhaut’s eccentric ring has been the focus of intense scrutiny for nearly two decades, and it keeps giving astronomers new ...

Nobody wants to read another column about the hidden bright side. There’s been at least six years’ worth of those already. Missing the playoffs meant higher draft picks. Misfiring on a couple of those ...

Earth's inner core, the solid iron-rich mass at the center of our planet, is slowly growing as the surrounding molten outer core cools and freezes. But this process has been a source of debate amongst ...