Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

The mission, jointly operated by the United States and India, will measure minute changes to land, ice, and ecosystems around ...

Solar flares are intense bursts of electromagnetic radiation that erupt from the sun’s surface, usually from magnetically ... storms if they collide with the Earth's magnetic field, resulting in the ...

The sun may rise every morning, but the amount of sunlight reaching Earth's surface can substantially vary over decades, ...

Earth is the only known planet which has plate tectonics today. The constant movement of these giant slabs of rock over the planet's magma creates continents - and may have even helped create life.

Solar flares are intense bursts of electromagnetic radiation that erupt from the sun’s surface ... they collide with the Earth's magnetic field, resulting in the appearance of the aurora.