The umbra is the dark, inner shadow of Earth. Shaped like a cone, it stretches deep into space. Its circular cross section ...

The National Aeronautics and Space Administration announced Wednesday that it may have found signs of ancient life on Mars.

In honor of 9/11, here's a look at the World Trade Center, a popular tourist destination and financial hub, before the tragic ...

Believe it or not, gooseneck barnacles are edible and delicious, even if they look like space aliens. With a sharp, claw-like ...

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology ...

Poland says that it and its NATO allies had shot down Russian drones that violated Polish airspace in what it called an “act ...

Scientists have captured a new image of the mysterious interstellar object racing through our Solar System, finding that it ...

Scientists have discovered a “greedy” white dwarf star that is “going thermonuclear” as it devours its twin at an ...