Where did life on Earth come from? It is one of humanity’s oldest and most fascinating questions. For centuries, people have ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

What if an alien species had a complete evolutionary history stretching billions of years? This deep dive explores the ...

Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of ...

Add Yahoo as a preferred source to see more of our stories on Google. Tardigrades—a type of invertebrate also known as water bears—are the only animals observed to survive the intense radiation and ...

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...

I don’t know how likely extraterrestrial life might be. But no matter what, the truth of Christianity will stand. This is how strange our times are: Last week, two United States presidents engaged the ...

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts ...

For generations, science fiction has imagined what life might look like on other worlds. Novelist H.G. Wells described nightmarish squid-like Martian invaders in The War of the Worlds, while the ...