Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with ...

Purple Earth Hypothesis suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for ...

Revolutionary technique allows astronomers to capture incredibly high-resolution images of distant galaxies and supermassive black holes.

From supermoons to an eclipse and star parties at national parks, these captivating celestial phenomena will get Americans ...

Solar scientists have found tiny, short-lived jets of energy on our sun to be the primary drivers of the solar wind, marking ...

Perhaps these federal workers’ dour interactions with me reflected their personal apprehension on how Donald Trump and his ...

The comic strip The Far Side has sometimes featured takes on alien life forms to hilarious effect, and these are some of the ...

A slew of popular Super Bowl food items have been recalled over a new listeria outbreak. Cheese, BBQ sauces, chicken thighs, ...

Uttarakhand’s efforts in implementing the Green Games theme stand out prominently, and even Prime Minister Narendra Modi has praised these initiatives. Other key messages related to women’s health, ...

"My wife is the most Googled person on the planet called Earth," Ye wrote in a since-deleted post comparing search stats of ...

In the simplest of terms, nature uses light as fuel to produce the oxygen we breathe and keep everything on Earth ... of dark oxygen, it has been commonly accepted knowledge that without light, ...