Astronomers claim first snaps of planets beyond the Solar System
Images of potential planets orbiting distant stars after decade-long search.
The pitfalls of tracing your ancestry
Charmaine Royal of the Duke Institute for Genome Sciences and Policy explains the limitations of genetic testing.
The ubiquitous disinfectant may kill bacteria by unfolding their proteins.
Illegal drug shows promise in treating trauma symptoms
MDMA may boost the benefits of psychotherapy, trial suggests.