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Basalt

All articles tagged with #basalt

science1 year ago

James Webb Telescope Advances Search for Water on Exoplanets

Researchers are exploring the potential of using the James Webb Space Telescope to identify water worlds by detecting specific minerals formed when water interacts with cooling lava on exoplanets. By studying basalt, a common volcanic rock, scientists aim to identify chemical fingerprints that indicate the presence of water. This method could help determine if exoplanets like LHS 3844b once had surface or subsurface water, although it requires extensive telescope time to analyze distant lava flows.

science2 years ago

The Impact of Amateur Magnet Use on Meteorites and Mars' Magnetic Field

Earth, atmospheric and planetary scientists at MIT have tested the impact of hand magnets on terrestrial basalt as a stand-in for meteorites. They found that moving hand magnets within inches of basalt samples led to magnetic fields in the rocks being irretrievably erased and replaced by the magnetic field of the hand magnet. The loss of magnetic field data from meteorites is particularly devastating because it could have provided clues about the magnetic field on Mars that once shielded its atmosphere from depletion. The research pair conclude their paper by asking that people who find meteorites not use magnets on them.