A tiny fraction of meteorites on earth contain strikingly beautiful, translucent, olive-green crystals embedded in an iron-nickel matrix. Called pallasites, these "space gems" have fascinated scientists since they were first ...
Space Exploration
Nov 15, 2012
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1
Deep below the Earth's surface lies the outer core, which is made up 2000-km thick liquid iron alloy layer. Despite being located 3000-km deep from the surface, it still affects our surface habitability as it is the region ...
Earth Sciences
Feb 17, 2023
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New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron. The findings, published in Nature Geoscience, suggest that the iron mist thrown ...
Earth Sciences
Mar 3, 2015
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Among the oddities of the outer solar system are the middle-sized moons of Saturn, a half-dozen icy bodies dwarfed by Saturn's massive moon Titan. According to a new model for the origin of the Saturn system, these middle-sized ...
Space Exploration
Oct 17, 2012
2
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When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, ...
Earth Sciences
Aug 18, 2009
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In the search for life elsewhere in the universe, scientists have traditionally looked for planets with liquid water at their surface. But, rather than flowing as oceans and rivers, much of a planet's water can be locked ...
Astronomy
Mar 15, 2023
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343
4.5 billion years ago in the violent, high-speed environment of the early solar system, a protoplanet roughly the size of Mars was involved in a series of fierce collisions with other large planetary bodies.
Space Exploration
Jun 22, 2017
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10
(PhysOrg.com) -- Sandwiched between the liquid iron outer core and the thin rocky crust we live on, the Earth's mantle is more than 1,800 miles thick, and comprises more than three-quarters of the planet's volume and nearly ...
Earth Sciences
Jun 11, 2010
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Testing continued on NASA's Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, or InSight, spacecraft on inside the Astrotech processing facility at Vandenberg Air Force Base in early March 2018.
Space Exploration
Mar 30, 2018
0
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