If you find out we are not alone in the universe, how would you respond?
Aliens can refer to everything from little green men in the sci-fi realm to microscopic life forms beyond Earth. For all these possibilities, Live Science has you covered. We break down the latest discoveries that hint at life on other planets and the state of scientific searches for such extraterrestrial life. Sometimes, we may dissect a "little green man" sighting as well.
Simple chemical reactions on hydrothermal vents could power life on dark worlds like Saturn’s world, Enceladus.
The UFO-investigating group MUFON turns 50 next month. What have we learned over the past five decades?
Certain conditions that nurture life deep underwater may also be found elsewhere in the solar system.
Black holes are engines of destruction on a cosmic scale, but they may also be the bringers of life.
Such a mission would have to keep two spacecraft, separated by thousands of miles, aligned within 3 feet of each other.
A new instrument designed to find potentially habitable alien worlds in the nearest star system to our own sun just revved up.
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