Much of the universe's regular "baryonic" matter is spread through intergalactic space and in diffuse halos around galaxies, ...

Between 50 and 1,000 kilometers above our heads is the ionosphere, a layer of Earth's upper atmosphere consisting of charged particles: ions (atoms that have gained or lost a negatively charged ...

The mystery radio pulses were picked up about 25 miles (40 kilometers) above Earth by the Antarctic Impulsive Transient ...

Recently, a group of scientists at the University of Pennsylvania, have detected mysterious radio signals, that seem to ...

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?

Scientists have been baffled to discover solid rock flowing 1,700 miles (2,700km) beneath the Earth's surface.

Scientiests are unable to explain this phenomenon and are speculating that it may hint at new types of phenomena or ...