New Scale Pinpoints Most Life-Friendly Alien Planets 

Researchers at the University of Washington’s Virtual Planetary Laboratory have devised a new habitability index for judging how suitable alien planets might be for life. The point of the exercise is to help scientists prioritize future targets for close-ups from NASA’s yet-to-be-launched James Webb Space Telescope »10/06/15 5:00pmTuesday 5:00pm

What Kinds of Life Forms Could Actually Live on Mars?

Yesterday, NASA reignited our hopes of finding alien life when it announced the first direct evidence of liquid water on Mars. But before we start indulging in fantasies of space crabs and reptilian beings, we ought to remember that Mars is a frigid world with a thin atmosphere. And that raises an obvious question:… »9/29/15 1:30pm9/29/15 1:30pm

Rare Shot of Venus Crossing the Sun May Help Us Find Alien Life

The image you’re looking at is a rare and beautiful event. Every 115 years, Venus crosses our Sun in Earth’s line of sight—twice. And when the most recent crossing took place, scientists used the event to take a peek at Venus’s atmosphere, refining tools that’ll one day help astronomers search distant worlds for signs… »7/10/15 1:45pm7/10/15 1:45pm

Scientists say these mysterious shrimp may hold keys to alien life

According to exobiologists at NASA, these mysterious shrimp and its symbiotic bacterium may hold clues "about what life could be like on other planetary bodies." It's life that may be similar—at the basic level—to what could be lurking in the oceans of Europa, deep under the icy crust of the Jupiter moon. »11/22/14 1:39am11/22/14 1:39am