
An MIT study finds an exoplanet, tilted on its side, could still be habitable if covered in ocean.
An MIT study finds an exoplanet, tilted on its side, could still be habitable if covered in ocean.
A new study is helping to answer a longstanding question that has recently moved to the forefront of earth science: Did our planet make its own water through geologic processes, or did water come to us via icy comets from the far reaches of the solar system?