Hvor skidt er rumfart for klimaet?
8:01 | I de her år bliver flere og flere raketter skudt afsted end nogensinde før i menneskehedens historie. Så hvor skidt er det egentlig for os hernede, når andre flyver rundt deroppe?
How Wireless Energy From Space Could Power Everything
10:54 | Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares his far-out vision for launching flexible solar panels into space in order to collect sunlight, convert it to electrical power and then beam it down to Earth.