News
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SpaceMost planets on tilted orbits pass over the poles of their suns
Nearly all of the worlds on misaligned trajectories in other solar systems orbit at nearly 90 degrees to their stars’ equators.
By Ken Croswell -
AnimalsMouse sperm thrived despite six years of exposure to space radiation
A space station experiment suggests future deep-space explorers don’t need to worry about passing the effects of space radiation on to their children.
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Health & MedicineHere’s what you should know about COVID-19 vaccine booster shots
No one knows if coronavirus booster shots will be necessary. But researchers are working on figuring that out.
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AstronomyAn arc of galaxies 3 billion light-years long may challenge cosmology
Dubbed “the Giant Arc,” the purported structure is much larger than expected in a cosmos where matter is thought to be evenly distributed.