The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. About a century ago, scientists were struggling to ...

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

The cosmos has long been a canvas for creatives who imagine a future where people live among the stars. Now, humanity stands at a pivotal juncture as the laborious, expensive and high-stakes process ...