Asteroids and comets that repeatedly smashed into the early Earth covered the planet's surface with molten rock during its earliest days, but still may have left oases of water that could have supported the evolution of life, scientists say.
The role that Earth's oceans have on our planet's habitability is undeniable, but now scientists think that exoplanetary oceans are essential for alien life to evolve. Continue reading →
In the case of a newly-discovered exoplanet orbiting a star only 16 light-years away, although astronomers may call it 'habitable,' it's likely anything but. Continue reading →
Make a note: if you ever find yourself exploring the moon one day and you want to try some lunar skinny-dipping, you'll have to do it at night. Continue reading →
Seeking out biomarkers on exoplanets could be the next big endeavor -- but what would it take to detect a key component of alien photosynthesis? Continue reading →
A new model suggests Jupiter's moon Ganymede has a "club sandwich" subsurface structure of ices and liquid oceans. Continue reading →
About 500 light-years away in the constellation Cygnus lives a star, which, though smaller and redder than the sun, has a planet that may look awfully familiar.
Trying to understand the ancient climate of our own planet is hard enough, but to understand Mars' climatic history, planetary scientists have had to turn to a rather inventive method of climate forensics. Continue reading →
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