“ The universe as a whole is expanding”
1 Earth Earth’s diameter is 12,756 kilometres (7,926 miles). The Moon orbits Earth at an average of 384,400 kilometres (238,855 miles).
2 Solar system The outermost planet in the Solar System, Neptune, orbits the Sun at a distance of 4.5 billion kilometres (2.8 billion miles).
3 living local Stars in our local region of space are separated by light years – tens of trillions of kilometres. The brightest star in the sky, Sirius, is 8.6 light-years away.
4 home galaxy Our Sun and Solar System, and all the stars in our sky, are members of the Milky Way – a vast spiral of stars that’s roughly 120,000 light-years across.
5 Grouping up The Milky Way is a major member of a small galaxy cluster called the Local Group, occupying a volume of space about 10 million light-years across.
6 Big cluster The Local Group is an outlying region of our local galaxy supercluster, sometimes called the Virgo or Laniakea Supercluster. It is over 100 million light-years long.
7 empty space The Virgo Supercluster is part of a local supercluster complex a billion light-years across. At this level, the large-scale structure of filaments and empty voids begins to emerge.
8 Far-reaching The observable universe has a diameter of about 93 billion light-years based on the current locations of regions that we can see.
Denne historien er fra Issue 120-utgaven av All About Space.
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Denne historien er fra Issue 120-utgaven av All About Space.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
15 AUTUMN STARGAZING TARGETS
Go on a night-sky treasure hunt as the brighter evenings give way to the cooler months
MYSTERIES OF THE UNIVERSE WHY IS VENUS SO DRY?
A new study reckons the answer lies high in the Venusian atmosphere
WHEN BLACK HOLES TURN WHITE
Can bouncing black holes help physicists find the ultimate theory of everything?
THE MOON'S THIN ATMOSPHERE IS MADE BY CONSTANT METEORITE BOMBARDMENT
While the solar wind also contributes to the atmosphere, meteorites are the main culprit
INTERSTELLAR TRAVEL AND HOW TO BECOME A SPACE TOURIST
Having explored much of the Solar System, attention is now turning to the stars beyond
NASA'S PERSEVERANCE ROVER FINDS POSSIBLE SIGNS OF ANCIENT RED PLANET LIFE
Further analysis is needed, but a rock contains potential evidence that life once existed on Mars in the distant past
A NASA TELESCOPE MAY HAVE FOUND ANTIMATTER ANNIHILATING IN POSSIBLY THE BIGGEST EXPLOSION SINCE THE BIG BANG
The massive explosion was captured in 2022
Jameel Janjua "This is how we get to Mach 3”
Jameel Janjua made it to the bitter end in a Canadian government astronaut selection in 2009, but wasn't chosen. He found a different path to space through Virgin Galactic
BOEING NEEDS TO IMPROVE QUALITY CONTROL ON THE SLS MOON ROCKET
The NASA Inspector General's report finds serious quality-control issues affecting the upgraded version and expects cost overruns and delays
DARK ENERGY
THE MOST DOMINANT FORCE IN THE UNIVERSE IS ALSO ITS MOST MYSTERIOUS AND MOST UNANTICIPATED
