Physicists are trying to find an elusive new type of particle called sterile neutrinos. But it's hard, because the particles only interact with other matter through gravitational force, the weakest of all known forces: Since their masses would be so tiny, their gravitational effects would be impossible to observe.
Tiny brains made cookie-cutter style could speed discoveries and complement — or some say, replace — mouse models now routinely used in laboratory research on neurological diseases such as Parkinson’s and Alzheimer’s.
Taking lessons from the 2014 Ebola crisis, global health officials must increase engagement among countries and communities to better address emerging epidemics such as Zika, public health experts say.
WASHINGTON — Scientists and others were abuzz last week over the long-awaited detection of gravitational waves, but the cosmological community awaits an even more monumental detection: that of the enigmatic substance called dark matter.
Regulations still hold users of unpiloted aerial vehicles, or UAVs, to many of the same requirements that apply to pilots of crewed aircraft. The rules are about to change, but their impact is unclear.