We often imagine Earth being visited by more advanced civilizations, but in the future humanity may encounter more primitive ...

Researchers have identified an 1,800-mile-wide plain in the northern hemisphere of Mars that may currently host alien life.

Well, as you may be aware they've been talking about an impending alien invasion for a while now, annnnd this looks like an alien to me. Kind of cute, though.

Plate tectonics seems to be crucial for life on Earth, but we’ve never confirmed that it happens on other worlds - that may ...

Learn why some of the most prominent ancient cities were built underground and which ones you can still see today.

Scientists have identified Acidalia Planitia on Mars as a potential hotspot for alien life, with conditions ideal for ...

Panyushkina and her team at the University of Arizona carefully dissected individual tree rings from ancient wood samples ...

“When it stood still, it flamed up, and was about three yards square,” Winthrop wrote. Over the course of several hours, the ...

Videos of a small asteroid entering Earth's atmosphere and creating a bright fireball over Yakutia, Russia, have left social ...

Why haven’t we found aliens yet? From cosmic vastness to self-destruction, here are intriguing reasons scientists think alien ...