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Planetary Sciences 1 hour ago

Dating the solar system's giant planet orbital instability using enstatite meteorites

Evidence from the fragments of a destroyed asteroid suggests that the shift in the positions of the giant planets in our solar system billions of years ago happened between 60–100 million years after the solar system's ...

Planetary Sciences 20 hours ago

New analysis reveals the brutal history of the Winchcombe meteorite's journey through space

Intensive new nano-analysis of the Winchcombe meteorite has revealed how it was affected by water and repeatedly smashed apart and reassembled on the journey it took through space before landing in an English sheep field ...

Space Exploration Apr 9, 2024

If we want to visit more asteroids, we need to let the spacecraft think for themselves

Missions to asteroids have been on a tear recently. Visits by Rosetta, Osirix-REX, and Hayabusa2 have all visited small bodies and, in some cases, successfully returned samples to the Earth. But as humanity starts reaching ...

Planetary Sciences Apr 9, 2024

'Swallowed,' torn up or live on: How Earth will fare when the sun dies

Our solar system and everything within it—including the Earth—will look very different when the sun dies.

Planetary Sciences Apr 8, 2024

Why is it so hard to drill off Earth?

Humans have been digging underground for millennia—on the Earth. It's where we extract some of our most valuable resources that have moved society forward. For example, there wouldn't have been a Bronze Age without tin ...

Astronomy Apr 5, 2024

NASA's NEOWISE extends legacy with decade of near-Earth object data

As the infrared space telescope continues its long-duration survey of the universe, it is creating a unique resource for future astronomers to make new discoveries.

Planetary Sciences Apr 4, 2024

What's the earliest the moon could have formed?

Astronomers are pretty sure they know where the moon came from. In the early solar system, a Mars-sized object dubbed Theia smashed into Earth. This cataclysmic collision knocked a huge mass of material into orbit, which ...

Astronomy Apr 4, 2024

Scientists pursue the total solar eclipse with NASA jet planes

The April 8, 2024, total solar eclipse will produce stunning views across North America. While anyone along the eclipse path with a clear sky will see the spectacular event, the best view might be 50,000 feet in the air, ...

Astronomy Apr 3, 2024

Australian 'bush glass' bears the fingerprints of a cosmic collision with an iron meteorite

How Earth and the other planets of the solar system formed and evolved over the eons is a hot question for planetary scientists like me. One of the best ways to find out is by looking at rocks from space.

Astronomy Apr 3, 2024

SLAC completes construction of the largest digital camera ever built for astronomy

After two decades of work, scientists and engineers at the Department of Energy's SLAC National Accelerator Laboratory and their collaborators are celebrating the completion of the Legacy Survey of Space and Time (LSST) Camera.

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