If, like Earth, Proxima b has a molten core and an internal dynamo that produces a powerful magnetic field, its surface might be shielded from high doses of radiation. If, like Mars, it doesn’t ...

Although the exoplanet, Proxima b, orbits extremely close — a year ... because we have a thick atmosphere and a strong magnetic field to protect our planet," said Meredith MacGregor of Johns ...

and leave the surface exposed to lethal radiation—unless Proxima b has a powerful magnetic field and dense atmosphere of its own. The study doesn’t close the door on life—but it does reframe ...

Once there [near Proxima b], the nanocraft could image any planets discovered in the system, test for magnetic fields and organic molecules, and send the data back to Earth in another laser beam. — ...

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...