SpaceMeteorite causes rethink of how and when our solar system formed Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the asteroid belt, but now a meteorite from the outer solar system is rewriting that view 51¶¯Âþ
HealthNighttime light exposure linked to heart disease in largest study yet Light exposure at night may disrupt our body's internal clocks, or circadian rhythms, that keep physiological processes ticking along 51¶¯Âþ