If life evolved the same way elsewhere in the cosmos as it did on our planet, could we find it by the technological traces such civilizations might leave behind?
Beginning as small, icy bodies on the outskirts of the solar system, comets turn into spectacular streaks of light when they pass through a "gateway" near Jupiter.
The lost continent "Greater Adria" existed hundreds of millions of years ago after it broke off from Gondwana.
Two theoretical physicists propose a novel idea to find dark matter — and it might actually be testable.
A never-seen-before extraterrestrial mineral was lurking inside a meteorite found nearly 70 years ago.
A new study suggests the universe's missing iron may not be missing at all, just really good at hiding.
What do a deep underwater volcano in Hawaii and Saturn's moon have in common? Astrobiologists are hoping the answer to that question is life.
Phosphine, a horrible-smelling gas that's toxic to life on Earth, could signal the existence of alien life-forms elsewhere in the universe.
Black holes gobble up most matter around them, but some of it escapes, spewing nearly-light-speed jets of material.
Yesterday, Earthlings first laid eyes on an actual image of a black hole — turning what lived only in our collective imaginations into concrete reality.
Earth’s magnetic field nearly collapsed about 565 million years ago, but the planet’s core froze solid and saved it in the nick of time, a new study suggests.