Venus is often called Earth's "sister planet" because of their similarities in size, mass, and composition. Both are rocky ...

It is uncontroversial that lava tubes - underground tunnels carved out by molten rock – exist on Earth, the moon and Mars. Smaller planets with low gravity tend to form more cavernous tubes, in part ...

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

Their huge size is peculiar and has forced scientists to throw out their pet theories on how planetary lava tunnels form.

Lava tubes are familiar on Earth. They form when the surface of a lava flow hardens while molten rock continues to drain ...

(CNN) — People who lived in the Arabian Peninsula thousands of years ago went underground when they wanted to beat the heat. Possibly stopping there as they traveled between oases and pastures, they ...

The Sea of Tranquility is home to at least one lunar lava tube, which could preserve a pristine and unweathered record of lunar volcanism. When you purchase through links on our site, we may earn an ...

Lava tubes are natural tunnels that form beneath solidified lava flows after a volcanic eruption. Lava hardens faster in the top layers of a lava flow, where the molten rock comes into contact with ...

WEST LAFAYETTE, Ind. — In 2017, Purdue University researchers helped discover a lava tube on the moon that could protect astronauts from hazardous conditions on the surface. Now, 3D image ...

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