成人快手

An impact with galaxy Enceladus, around 10 billion years ago filled, our home galaxy, the Milky Way鈥檚 inner surrounding halo with stars and made the galactic disk much thicker, and starrier than it ought to be.

Carbon tetrachloride is one of several man-made gases that contribute to the depletion of the ozone layer high in the atmosphere. Because of this, restrictions were introduced on the use of this gas under the Montreal Protocol. Concentrations of the gas in the atmosphere should be going down at a rapid rate. But it鈥檚 not, and a team of atmospheric scientists have been sniffing around to work out where the new sources of carbon tetrachloride are coming from and it鈥檚 China.

Every year, the influenza viruses spreading around the world are monitored to work out which strains are most prevalent and potent and it鈥檚 these that flu vaccines are created to combat. But what if there was a universal flu vaccine that worked against all influenza strains? Well, this is what鈥檚 being worked on right now and it involves llama antibodies.

How should we tackle the biggest clean-up job in history? Listener Michelle from Ireland sends CrowdScience to investigate what to do with years鈥� worth of spent nuclear fuel. Most of the highly toxic waste is a by-product from nuclear power production and the stockpiles across the World continue to grow. 鈥淐ould we blast it into the sun? Dilute it across the continent? Or should we burry it?鈥� Michelle asks.

We travel deep into the Finnish bedrock to visit what could be its final resting place and speak to the scientists who are securing the facility many ice-ages into the future. The nastiest stuff in the waste soup needs to stay put for thousands of years before it becomes safe. No man-made structure has ever before lasted so long. The Finnish solution is not easy to replicate in other countries as communities oppose nuclear waste being permanently buried in their backyard.

Picture: Nasa Hubble Space Telescope image of the Antennae galaxies, Credit: Stocktrek Images/Getty