On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Frequent deployment of satellites and re-entries by the rockets that deploy them might pose a risk to the Earth's upper ...

A new study published in the Journal of Climate reveals how surface warming in Antarctica, particularly over the Antarctic Peninsula, is significantly altering the stability of the lowest layers of ...

Ice-sheet melt temporarily intensified Southern Ocean stratification between ice ages and warmer interglacial periods, thus ...

Scientists have developed a powerful new way to trace the journey of water across the planet by reading tiny atomic clues hidden inside it. Slightly heavier versions of hydrogen and oxygen, called ...

Rainfall is often treated as a gift of geography — a function of latitude, oceans, and atmospheric circulation. A growing ...

For the first time ever, scientists have observed in near real time a cloud of air pollution created as a SpaceX rocket burned up in Earth's atmosphere.

Climate change is rapidly freshening one of Earth’s saltiest ocean regions in the Southern Indian Ocean, potentially disrupting circulation.

Climate change makes nitrous oxide disappear faster, creating new uncertainty for future climate and ozone predictions.

A new study shows that during the last two deglaciations, i.e., the transition from an ice age to the warm interglacial periods, meltwater from the Antarctic ice sheet intensified stratification in ...

Climate change is speeding up the destruction of nitrous oxide in the stratosphere, introducing uncertainty into future greenhouse gases level.