Add Yahoo as a preferred source to see more of our stories on Google. Venus’s clouds are rich in water and iron, challenging old models of its harsh, acidic atmosphere. (CREDIT: JAXA/ISAS/DARTS/Kevin ...

Venus -- Earth's closest planetary neighbor known for its thick clouds and average temperature that's hotter than your kitchen oven -- may have once been a habitable planet, astronomers have revealed ...

The number of planets capable of hosting alien life may be smaller than we thought, thanks to a new understanding of how water levels drive a planet’s climate. Below a certain level, carbon dioxide in ...

Venus has long been called a dry, hellish planet veiled in clouds of liquid acid. But new study of old spacecraft data tells a different story—one that’s reshaping what scientists believed they knew ...