comparative form of nice: more nice
"The weather was a bit nicer today than it was yesterday."
comparative form of nice: more nice
"The weather was nicer today than it was yesterday, so we decided to go for a walk."
Initialism of Neutron Star Interior Composition Explorer, a future NASA Explorers program Mission of Opportunity.
"Scientists at the NICER mission are analyzing new data to better understand neutron star properties."