PhysicsTabletop fusion reactor mimics cosmic-ray crashes The first laser-driven device to spark fusion in boron plasma can double as an astrophysical lab for studying how particle crashes forge elements ¿ìè¶ÌÊÓÆµ
HealthHIV infection figures tumbling around the world Increases in the availability of antiviral therapies have halved the number of new HIV infections in children since 2001 ¿ìè¶ÌÊÓÆµ