2020s in science and technology

This article is a summary of the 2020s in science and technology.

• DeepMind used artificial intelligence for the first time to predict protein folding.^[1]
• Singapore became the first jurisdiction to approve the sale of cultured meat.^[2]
• The vaccines produced by Pfizer/BioNTech and Moderna against Coronavirus disease 2019 became the first vaccines developed using messenger RNA^[3] and mark the fastest vaccine development and approval, taking only 10 months.^[4]
• Oregon became the first jurisdiction to legalize the medicinal use of psilocybin for mental health treatment.^[5]

• QuantumScape revealed that it had created the first functioning prototype of a solid-state battery, promising to massively increase battery capacity.^[6]
• The Chinese Experimental Advanced Superconducting Tokamak was turned on for the first time.^[7] The China Fusion Engineering Test Reactor is being planned for commissioning later in the decade.
• Group14 Technologies has patented SCC55, a silicon-carbon composite, leading to 50% more in fully lithiated volumetric energy density than graphite used in conventional lithium-ion battery anodes.^[8][9]

• The United Nations has designated the 2020s as the Decade of Ocean Science for Sustainable Development.^[10]

• Artificial intelligence-assisted coding began to emerge in the early 2020s.^[14]
• El Salvador passed Bitcoin law to become the first country to give cryptocurrency and bitcoin the status of legal tender.

• In January 2020, Physicists discovered a unique metal with billions of quantum entangled electrons.^[15]
• The Large Hadron Collider will once again begin operation in early 2021;^{[16][17][18][19]} the collider was shut down in December 2018 "to enable major upgrade and renovation works."^[16]

• History of science and technology
• List of science and technology articles by continent
• List of years in science
  • 2025 in science
• Impact of the COVID-19 pandemic on science and technology
• History of technology by type
• List of science timelines