A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

Excavations on unpromising mounds in the Iraqi desert revealed Sumer’s earliest city. Surviving relics and a rebuilt temple ...

Astronomers have discovered that super-Earth exoplanets are more common across the universe than previously thought. While it can be relatively easy to locate worlds that orbit close to their star, ...

Named Eos, the cloud of gas would appear huge in the night sky if visible to the naked eye and could shed light on solar ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies ...

Protection by the state could prove critical as the Trump administration proposes new rules to weaken the federal Endangered ...

Scientists have discovered two new methane-producing archaea in the human gut, revealing surprising links to inflammation and ...

Learn more about a meteorite impact that may have given rise to the life we know on Earth today.

Scientists discovered strange light pulses that appear without buildup and resist interference, thanks to time’s one-way flow ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

The scientists have named the molecular hydrogen cloud “Eos,” after the Greek goddess of mythology who is the personification ...

Now, new data show that this is a world like nothing seen before. Using cutting-edge instruments on the Telescopio Nazionale ...