Optical tweezers developed by a new Nobel laureate could potentially be used on slightly larger objects, but not spacecraft.
The 2018 Nobel Prize in chemistry will go to Frances H. Arnold, George P. Smith and Sir Gregory P. Winter for research on enzymes, peptides and antibodies.
Optical innovations made by the three new laureates help scientists control tiny organisms and make incredibly short and powerful laser pulses.
James P. Allison and Tasuku Honjo share prize for discovery of checkpoint inhibitors for cancer therapy.
New safety rules pose challenges for players and officials.