Fossils can tell scientists what living things were around at different times in Earth’s history ... was oxygen in the atmosphere. Rocks containing iron oxide can only form if oxygen is present.

Carbon dioxide (CO2) has been present in the atmosphere since the Earth condensed from a ball of hot gases following its formation from the explosion of a huge star about five billion years ago.

Fossils can tell scientists what living things were around at different times in Earth’s history ... was oxygen in the atmosphere. Rocks containing iron oxide can only form if oxygen is present.

For years, scientists have struggled to understand two major mysteries about the Earth’s climate: what triggered the ...

As energy from the sun reaches Earth, some solar radiation is absorbed by the atmosphere, leading to chemical reactions like the formation of ozone and the breakup of gas molecules. A new approach ...

The Isua Formation includes magmatic rocks and ... into the role of our magnetic field in shaping the development of Earth's atmosphere as we know it, particularly regarding atmospheric escape ...

It’s not unusual for Earth’s atmosphere to be affected by space ... Launched in October 2002, it studies explosions, radiation, formation of elements, black holes and other exotic objects ...

But the data should also be useful for scientific studies of Earth’s upper atmosphere, he says. Already, the map has revealed bubbles in ionized gas, known as plasma, over South America that had ...

He reproduced the early atmosphere of Earth that Urey proposed by creating ... Amino acids are necessary to form proteins which themselves form the structure of cells and play important roles ...