23/09/2026

The far side of the moon provides clues to a past magnetic field

Unlike Earth, the moon no longer has a core-generated magnetic field. On our planet, the movement of liquid iron in the outer core generates a global magnetic field. This so-called geodynamo works on a similar principle to ...

Exercise keeps astronauts' hearts strong enough for flight to Mars

Intense exercise during long spaceflights helps maintain heart structure and function within a range needed to tolerate the low-gravity environment of Mars, a study co-led by a UT Southwestern Medical Center researcher suggests. ...

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