Livescience.comstaff Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1Unitree's H2 robot poses, pirouettes and pulls off deft karate moves with eerily lifelike movement2'Illegal' metal detectorist found a huge hoard of Roman treasure in Germany — and kept it hidden for 8 years3New study reveals why time seems to move faster the older we get4Superbright 'Comet Lemmon' gets its tail temporarily torn to pieces by solar wind5Superbright 'Comet Lemmon' flies through auroras over Scotland during surprise solar storm
