Emma Keeling talks to the U.S. scientists behind Corbevax, a patent-free brewed vaccine that's grown in yeast. This technology is far simpler and more readily available than vaccines using MRNA, and could be a potential game changer in making COVID-19 vaccines more available to developing countries. Emma speaks to Maria Elena Bottazi from the Baylor College of Medicine about how the vaccines are made and how pivotal they're already proving to be in India where they are currently being rolled out.

Yang Zhao talks to scientists from the University of Science and  Technology of China who are developing a super battery which could potentially revolutionise electric vehicles. In particular, they're developing a new electrode materials which allows for ultra-fast charging, potentially allowing for batteries to be recharged within 10 minutes.

For scientists exploring the possibility of human settlements beyond Earth, Mars has long been the planet of choice with its C02-rich atmosphere and 24-hour cycle. But it's not the only candidate. Finnish astrophysicist Pekka Janhunen has proposed Ceres, a dwarf planet in the asteroid belt between Mars and Jupiter as the site for an orbiting megasatellite. Ceres is the same distance as Mars and has an abundance of nitrogen which is vital for creating an atmosphere.