More than 4.5 billion years ago, a Mars-sized planet may have collided with the young Earth in a cataclysmic impact. The ...

Even while NASA now provides a clearer picture of how and when life might end on Earth, the chaotic beginnings of the planet and the solar system continue to spark some of the most mind-blowing ...

The conventional explanation for the moon's formation is that an enormous rock smashed into the nascent Earth and created it as a result. A new theory challenges the particulars of how events may have ...

Whether it’s under the stars on the Main Green, from smudged dorm windows or through open sunroofs, we see the moon nearly every night. But a new study by Brown researchers suggests that we know less ...