The Hollywood blockbuster may have been right, if only 3.2 billion years off the mark.
- Researchers find evidence that Earth may have been submerged in a global ocean during the Archaean eon.
- The research could change our understanding of how life emerged.
- It's one of many recent studies changing how we view our planet's infancy.
A new batch of papers reveals some of Mars' subterranean secrets.
- The spacecraft InSight detected tremors from deep underneath the rust-colored surface of Mars indicating, for the first time ever, that the planet is geologically active.
- The quakes could potentially give seismologists insights into the interior composition of the planet.
- The Insight lander also uncovered magnetized rocks "consistent with a past dynamo with Earth-like strength" under the surface of the landing sight.
Minnesota earned its 'blue mark' in the 1975 Morris earthquake, which had its epicenter in the western part of the state.
- Californians, want to run away from the Big One? Head for Minnesota.
- As this map shows, the Gopher State is the least likely to be hit by earthquakes.
- Choose your new home wisely, though: even Minnesota has one earthquake-sensitive spot.
Plate tectonics and mantle plumes set the lifespan of volcanic islands like Hawaii and the Galapagos.
When a hot plume of rock rises through the Earth's mantle to puncture the overlying crust, it can create not only a volcanic ocean island, but also a swell in the ocean floor hundreds to thousands of kilometers long.
What happens after a heavy comet meal?
- A comet produces and unexpected explosive ejection of ice, dust, and gas.
- NASA's TESS satellites captures the whole thing by accident.
- The "burp" may have left a crater 65 feet across. That's quite a burp.