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United plans supersonic passenger flights by 2029

bbc.com

Biology and medicine

See also: Timeline of biotechnology § 2020s

• 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 RNA³ 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

Energy

See also: Timeline of solar cells § 2020

• 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.⁸⁹

Environmental sciences

Further information: 2025 in the environment and environmental sciences

Further information: Meteorology in the 21st century

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

Space

Main article: 2020s in spaceflight

Transport

Air

• In 2021, United Airlines revealed plans to purchase 15 supersonic Boom Overture aircraft by the end of the decade.¹¹

Land

• Waymo became the first company to offer self-driving car services to the general public without a human supervisor in Chandler, Arizona.¹²
• Autonomous delivery vehicles began transporting food to customers in Texas in 2021.¹³

Computing and artificial intelligence

Main article: Timeline of computing 2020–present

See also: AI Spring

• 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.

Robotics and machine learning

Physics

• 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;^16171819 the collider was shut down in December 2018 "to enable major upgrade and renovation works."²⁰

Paleontology

Further information: 2025 in paleontology

Archaeology

Further information: 2025 in archaeology

See also

• Science portal
• Technology portal

• 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

References

1. "DeepMind AI cracks 50-year-old problem of protein folding". the Guardian. 30 November 2020. Retrieved 9 December 2020. https://www.theguardian.com/technology/2020/nov/30/deepmind-ai-cracks-50-year-old-problem-of-biology-research ↩

2. "No-kill, lab-grown meat to go on sale for first time". the Guardian. 2 December 2020. Retrieved 9 December 2020. https://www.theguardian.com/environment/2020/dec/02/no-kill-lab-grown-meat-to-go-on-sale-for-first-time ↩

3. "Pfizer and Moderna vaccines showing potential success of mRNA platform – a first". Boston Herald. 21 November 2020. Retrieved 9 December 2020. https://www.bostonherald.com/2020/11/20/pfizer-and-moderna-vaccines-showing-potential-success-of-mrna-platform-a-first/ ↩

4. "Pfizer COVID Shot Is Fastest Ever Vaccine to Be Approved in the West, First Licensed mRNA Jab in History". 2 December 2020. https://www.newsweek.com/pfizer-covid-west-mrna-1551754 ↩

5. Feuer, Will (4 November 2020). "Oregon becomes first state to legalize magic mushrooms as more states ease drug laws in 'psychedelic renaissance'". CNBC. Retrieved 9 December 2020. https://www.cnbc.com/2020/11/04/oregon-becomes-first-state-to-legalize-magic-mushrooms-as-more-states-ease-drug-laws.html ↩

6. "Did QuantumScape Just Solve a 40-Year-Old Battery Problem?". Wired. ISSN 1059-1028. Retrieved 9 December 2020. https://www.wired.com/story/quantumscape-solid-state-battery/ ↩

7. "China turns on nuclear-powered 'artificial sun' for first time". The Independent. 7 December 2020. Archived from the original on 7 December 2020. Retrieved 9 December 2020. https://www.independent.co.uk/news/world/asia/china-nuclear-fusion-reactor-artificial-sun-chengdu-b1767393.html ↩

8. Root, Al (19 October 2020). "Another Way Tesla Can Reduce Battery Costs". https://www.barrons.com/articles/ev-battery-cathodes-are-getting-better-dont-forget-about-the-anodes-51603105205 ↩

9. "SCC55". https://uspto.report/TM/90093634 ↩

10. "United Nations Decade of Ocean Science for Sustainable Development (2021-2030)". UNESCO. 9 February 2017. Retrieved 9 December 2020. https://en.unesco.org/ocean-decade ↩

11. "United plans supersonic passenger flights by 2029". BBC News. 4 June 2021. Retrieved 11 July 2021. https://www.bbc.com/news/technology-57361193 ↩

12. Lee, Timothy B. (8 October 2020). "Waymo finally launches an actual public, driverless taxi service". Ars Technica. Retrieved 9 December 2020. https://arstechnica.com/cars/2020/10/waymo-finally-launches-an-actual-public-driverless-taxi-service/ ↩

13. Wood, Charlie (10 July 2021). "The future of self-driving? Maybe less like Elon Musk and more like Domino's pizza robots". CNBC. Retrieved 11 July 2021. https://www.cnbc.com/2021/07/10/self-driving-looking-less-like-elon-musk-more-dominos-pizza-robots.html ↩

14. "AI is transforming the coding of computer programs". The Economist. 7 July 2021. ISSN 0013-0613. Retrieved 11 July 2021. https://www.economist.com/science-and-technology/2021/07/07/ai-is-transforming-the-coding-of-computer-programs ↩

15. "Billions of quantum entangled electrons found in 'strange metal'". ScienceDaily. Retrieved 19 January 2020. https://www.sciencedaily.com/releases/2020/01/200116144105.htm ↩

16. CERN. "LHC prepares for new achievements". Retrieved 10 September 2019. https://home.cern/news/press-release/accelerators/lhc-prepares-new-achievements ↩

17. Hays, Brooks. "CERN reveals plans for new experiment to search for dark matter particles". United Press International. Retrieved 10 September 2019. https://www.upi.com/Science_News/2019/03/06/CERN-reveals-plans-for-new-experiment-to-search-for-dark-matter-particles/8011551887451/ ↩

18. Tech2 News Staff (3 September 2019). "Cern's Large Hadron Collider Gets Major Upgrade, Experiments Resumed in 2021". Tech2. Retrieved 10 September 2019.{{cite web}}: CS1 maint: numeric names: authors list (link) https://www.firstpost.com/tech/science/cerns-large-hadron-collider-gets-major-upgrade-experiments-to-resume-in-2021-7273541.html ↩

19. Wetzel, James (26 August 2019). "USCMS completes phase 1 upgrade program for CMS detector at CERN". Fermilab. Retrieved 10 September 2019. https://news.fnal.gov/2019/08/uscms-completes-phase-1-upgrade-program-for-cms-detector-at-cern/ ↩

20. CERN. "LHC prepares for new achievements". Retrieved 10 September 2019. https://home.cern/news/press-release/accelerators/lhc-prepares-new-achievements ↩