A new video shows how Earth's magnetic field weakened and warped before temporarily flipping during a recent "polar reversal event." ...

"We have no way to determine how different exoplanets really look in detail yet, and this makes them a rich space for creativity." ...

If aliens are watching Earth, they might be able to detect us from the radio signals we beam to Mars to control our rovers ...

Adults will be elbowing their way in, under the guise of “helping the kids,” while secretly plotting to claim the title of ...

While the SETI Institute is investigating interstellar space for extraterrestrial life, we may find it in our own cosmic ...