Science ❯ Physics

Gravitational Effects

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Study Calculates How Tiny Black Holes Could Injure Humans—and Why Encounters Are Virtually Impossible

The analysis links specific mass thresholds for human injury to tentative limits on primordial black holes as dark matter.

Global Radio Array Detects Smallest Gravitational-Lensing Object Yet, Weighing About a Million Suns

Global VLBI Detects Lowest-Mass Dark Object at Cosmological Distance

New Mapping Method Targets Safer Asteroid Strikes to Avoid Gravitational Keyholes

ESA’s Apophis Probe on Track as China Proposes 2029 Flyby

Researchers Warn Venus Co-Orbital Asteroids Could Endanger Earth