【了解宇宙是如何运行的第七季】

　　S7,Epccc
　　8Jan.2019NightmaresofNeutronStars
　　Neutronstarsarestrangeandviolentphenomenathatdefythelawsofphysics,andnewdiscoveriesrevealthatthesebizarrenightmaresarefarmoredeadlythanpreviouslybelieved,withthepowertodestroyplanetsandevenotherstars.
　　
　　WhenSupernovasStrikeS7,Ep2
　　15Jan.2019WhenSupernovasStrike
　　Supernovasaretheviolentdeathofgiantstars,andnewdiscoveriesrevealthatthesecataclysmiceventscreatetheelementsthatareessentialtoalllifeintheuniverse.
　　
　　TheInterstellarMysteriesS7,Ep3
　　22Jan.2019TheInterstellarMysteries
　　Discoveriesaboutinterstellarspace,thespacebetweentheuniverse'sstars,revealthatit'snotemptyandunremarkableaspreviouslythought,butfilledwithweirdobjectsandstrangephenomenathatmightholdthedarkestsecretsofthecosmos.
　　
　　HowBlackHolesMadeUsS7,Ep4
　　29Jan.2019HowBlackHolesMadeUs
　　Blackholesarenottheviolentmonsterspeoplethinktheyare,andnewdiscoveriesrevealthattheymighthavebeenessentialtocreatingstars,givinglight,andbuildingtheuniverseitself.
　　
　　SecretWorldofNebulasS7,Ep5
　　5Feb.2019SecretWorldofNebulas
　　Nebulasarethestrangestructuresofcosmicgasanddustwherestarsarebornanddie,andnewdiscoveriesrevealthesecretsofthesemysteriousplaces.
　　
　　DidtheBigBangReallyHappen?S7,Ep6
　　12Feb.2019DidtheBigBangReallyHappen?
　　NewdiscoveriesarecausingastronomerstoquestioniftheBigBangreallyhappened,andusingthelatestscience,theyinvestigateifitwasn'tjustthestartofouruniversebutmanymysteriousmultiverses.
　　
　　BattleoftheDarkUniverse.S7,Ep7
　　19Feb.2019BattleoftheDarkUniverse.
　　Darkmatteranddarkenergyarelockedinanepicbattleforcontrolofthecosmos,andthewinnerwilldeterminethefateoftheuniverse.Newdiscoveriesmightrevealwhichforcewillemergevictorious.
　　
　　HuntforAlienLifeS7,Ep8
　　26Feb.2019HuntforAlienLife
　　Thelatestdiscoveriessuggestthatwemightbeonthevergeofdiscoveringlifebeyondourplanet,andscientistsareinvestigatingifearth'slifebeganelsewhereintheuniverse,andwhetherweneedtoevolvetoknowforsure.
　　
　　FindingtheNewEarthS7,Ep9
　　5Mar.2019FindingtheNewEarth
　　Newdiscoverieshaverevealedthousandsofexoplanetsbeyondthesolarsystem.Someresembleearthenoughthatonecouldbeanewhomeforhumanity.Evenwithcutting-edgetechnology,findingtheperfectoneisthescientificchallengeoftheage.
　　
　　Cassini'sFinalSecretsS7,Ep10
　　12Mar.2019Cassini'sFinalSecrets
　　Fortwentyyears,NASA'sCassinispacecraftrevealedthestrangesecretsofSaturnuntilitvaporizedinitsatmosphereinablazeofglory.Buttodayitslegacyliveson,asfreshdatafromtheprobehelpsscientistsmakebrand-newdiscoveries.