The air on Venus is about 96.5% carbon dioxide, a potent greenhouse gas. All that CO2 leads to a runaway greenhouse effect ...

Kīlauea Volcano eruption ends with lava fountains reaching 1,300 feet inside Halemaʻumaʻu crater. The summit caldera is under ...

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

This MCC image, taken on September 03, 2015 at an altitude of 6144 km with a resolution of 320 m, shows an intermediate sized shield volcano known as Tharsis Tholus. It is located in the eastern ...

Venus is often called Earth's "sister planet" because of their similarities in size, mass, and composition. Both are rocky worlds that formed about the same time in the inner solar system; however, ...

“ Maui Nui in its heyday, about 1.2 million years ago, encompassed about 5,640 square miles, larger by 50% than today’s Big ...

Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat levels.

New research presented at the Europlanet Science Congress 2025 in Helsinki suggests that Venus may be concealing some of the ...

Evidence continues to assemble that Venus is more geologically active than previously thought. Planetary scientists scouring decades-old data from NASA's Magellan spacecraft have found signs of lava ...

A geologist has revealed intriguing insights into the volcanic activity on Mars. He proposes that Mars has significantly more diverse volcanism than previously realized, driven by an early form of ...

Hawaii's Kilauea volcano once again captivated onlookers with a stunning display of nature's power as it spewed lava fountains reaching up to 1,000 feet during its latest eruptive cycle. This ...