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'Just the tip of the iceberg': Why risky asteroids like 2024 YR4 will pester Earth for decades to come
The world is watching as NASA tweaks the odds that asteroid 2024 YR4 will hit Earth. But how threatening is YR4, and how does ...
Colliding plasma ejections from the Sun generate huge geomagnetic storms − studying them will help scientists monitor future space weather
The Sun periodically ejects huge bubbles of plasma from its surface that contain an intense magnetic field. These events are ...
Smithsonian meteorites help unlock the mystery of Earth's water arrival
R ecent research published in the journal Geochimica et Cosmochimica Acta reveals that water reached Earth during the late stages of the planet's evolution from dust and gas, spec ...