BBC Focus

(Marcin) #1
Proxima b
Forourfirstinterstellartrip,it’s
ano-brainerthatweshouldgo
tothenearestexoplanet,Proximab.
TheEarth-likeplanetwasrecently
discoveredorbitingthereddwarfstar
ProximaCentauri,whichliesaround
4.2light-yearsaway.Proximabisa
rockyplanet,andiscloseenoughtoits
hoststartoallowliquidwatertoexist.
Couldlifebelurkingonitssurface?

Kepler 452
Ifwehadawarpdrive,thisstarwould
beworthavisit.At1,400light-years
awayitisafairdistancetotravelbut
in2015NASAannouncedthatthisstar
possessesaplanetsimilartoEarth.
Thestaritselfisalmostidenticalto
theSun,theplanetisasfarfromitas
EarthisfromtheSun,andit’sabit
biggerthanEarth.Atpresent,it’sthe
mostEarth-likeplanetdiscovered.

Wolf 1061
Just13.8light-yearsfromEarth,this
reddwarfstarplayshosttoa
potentiallyhabitableplanet.Itwas
discoveredbyastronomersfromthe
UniversityofNewSouthWalesin
2015andhasaradius1.5timeslarger
thanEarth.Asitshoststarissmaller
andmuchdimmerthantheSun,the
planethasafarshorterorbitthan
Earth.Itsyearisjust17.9dayslong.

Orion Nebula
Astronomershaveusedground-
basedtelescopestoobservethis
faintsmudgeintheconstellationof
Orion,wherethousandsofstarsare
beingformed.TheOrionNebulalies
1,344light-yearsaway,andwhole
solarsystemsofplanetsarebeing
glimpsedintheirnascentform,
whileothersarebeingdestroyedby
radiationfromsurroundingstars.

The centre of
the Milky Way
Withawarpdrivewecouldtravelto
thecentreoftheGalaxy,some
30,000light-yearsaway,andobserve
thevastblackholethoughttoreside
there.Itsitsinsideabright,compact
radiosourcecalledSagittariusA*–
astronomerswouldsalivateatthe
possibilityofwatchingasastarora
gascloudfellintotheblackhole.

WHERE SHOULD WE GO?


PHOTOS: GET T Y, NASA X4, ESO ILLUSTRATION: MAGIC TORCH


With 17g of


antimatter, a


spacecraft could


cross one


light-year of


space in just


a decade

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