Two major earthquakes on opposite sides of the Pacific within roughly two days have jolted public anxiety, feeding talk of a ...

Mars enters Capricorn on Dec. 15, which offers the chance to set personal and professional plans in motion. Here's what the ...

A Mars-size object called Theia smashed into Earth, and the debris coalesced into the moon. Now scientists believe they may have identified pieces of Theia at the bottom of Earth’s mantle. A new study ...

Dust devils on Mars form when air near the warm surface heats up and rises through cooler surrounding air, causing nearby air ...

NASA's Perseverance rover has for the first time helped scientists confirm that electrical sparks often ignite within ...

A NASA rover that launched from Florida detected electrical sparks igniting within small dusty tornadoes whirling on Mars' ...

For several decades, it has been thought that dust devils on Mars may be able to produce spark discharges. Many lab ...