The 2 strong earthquakes of July 14, 2019 - the first a 6.6-magnitude off the western coast of Australia and the second a 7.3-magnitude in Indonesia - happened on or near the Pacific Ring of Fire.

A new study, which used declassified images from spy satellites, shows that glaciers in the Himalayas melted twice as fast from 2000 to 2016 as they did from 1975 to 2000.

Satellite images confirm that this rare lava lake is a continuous feature at the top of Mount Michael, in the South Atlantic's South Sandwich Islands. The temperature of the molten lava is some 1,000 degrees Celsius (1,800 degrees Fahrenheit).

Here be monsters. This video shows a living giant squid, captured on camera in its natural habitat for only the 2nd time in history.

An earthquake scientist said of the recent 2 big California earthquakes, "... the M6.4 was a foreshock. This was a M7.1 on the same fault ... part of the same sequence." She added it will not trigger another large earthquake outside the Ridgecrest, California, area.

You'll meet the parasitic fungi that take control of living insects in this story by Gino Brignoli, a London-based researcher in tropical ecology.

Scientists say increased carbon dioxide (CO2) in Earth's atmosphere is causing global temperatures to warm - sea levels to rise - and storms, droughts, floods and fires to become more severe. Here are 6 things about CO2 you might not know.

For the northern part of Earth, the season for seeing noctilucent clouds - clouds that shine at night - typically begins in June. This June has been particularly fine for seeing these electric-blue clouds. Photos and video here.

Scientists have been trying to figure out how clouds form in Mars' thin atmosphere, and thanks to new research, the answer seems to be ... meteors.

There are 161 active volcanoes in the United States, more than 1/3 of which have been classified as posing a high threat to nearby communities. A new law aims to improve volcano monitoring.