Two continent-sized clumps of rock near Earth's core have remained a mystery for years. Could they be pieces of an alien planet? Four and a half billion years ago, shortly after the Earth had first ...

Astronomers have detected strange wobbling jets in the rare sun-facing tail of interstellar comet 3I/ATLAS. Observed as the comet neared the Sun, the shifting jets reveal new details about how ...

The discovery of extraterrestrial material inside an ancient crater on Earth is raising new questions about how life may have first emerged on our planet. South Korean researchers studying the ...

What if our 3D printers and replicators could use raw dust and materials from the moon, Mars, or other celestial bodies as we venture off our world into the vast expanses around us? It’s akin to the ...

What sounds like the plot of a sci-fi movie may actually have revealed remnants of the planet that collided with Earth billions of years ago to produce the Moon. Two continent-sized clumps of rock ...