A team of astronomers have detected what they call the most promising signs to date of a possible biosignature, or signs of ...

Pope Francis receives US Vice President JD Vance before bestowing the Urbi et Orbi. Sunday, April 20, 2025.

People of all ages gathered on Liberation square in Ruse, Bulgaria to celebrate Easter on Sunday, April 20, 2025.

A new study shows TOI-270 d is a fiery rocky exoplanet, offering fresh insight into the galaxy’s most common planet type.

Another hypothesis is that contagious yawning evolved to keep groups in sync. Yawns follow a natural circadian rhythm and ...

Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed ...

Early humans likely used naturally sharp rocks before making their own tools, a new hypothesis suggests, potentially pushing ...

But given the age and vastness of the universe, a different question has long puzzled some scientists: why haven't we already come in contact with aliens?