Travertine is not only a geological wonder but also a popular building material. Its use dates back to ancient Rome, evident ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

Most of the time, the shape of Earth’s magnetic field is quite similar to that which would be produced by a bar magnet ...

"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain falling for millions of years." ...