Sciencemag

Novavax vaccine shows “markedly stronger” responses in early human trials

New semiconductor lasers work with small, portable coolers, enabling applications outside laboratories

Chip-based lasers that plumb uncharted light range could propel medical imaging and contraband detection

Russia, China continue to oppose creation of three new protected areas

New measures seek to lower the spread of the coronavirus, but some scientists say Europe should eliminate it

Portuguese-language videos remain on YouTube, despite platform’s pledge to limit conspiracy theories

Portuguese-language videos remain on YouTube, despite platform’s pledge to limit conspiracy theories