Think you know space? Let's go.
From west to east.From east to west.
That's why the sun rises in the east.
Mars is about half the width of Earth.
Both Mercury and Venus are moon-less.
Between February 1979 and February 1999 Pluto's elliptical orbit brought it closer to the sun that Neptune. It will cross over again in just over 200 years from now.
It's one of the Galilean moons, along with Europa, Ganymede and Callisto.
Makemake is a dwarf planet in the Kuiper belt.
250 light years25,000 light years
AndromedaLarge Magellanic Cloud
The Large Magellanic Cloud is a satellite of our own galaxy, so its closer. Andromeda is the largest galaxy in the Local Group and is over ten times further away than the LMC.
51 Pegasi b was discovered in 1995.
Main sequenceRed supergiant
It's the ninth brightest star in the night sky.
It's the remnant of a supernova. The other nebula above is the Orion nebula.
In a supernova explosionIn the big bang
Hydrogen and helium were formed in the big bang, and everything else was formed in stars.
Observations of the red shift of distant galaxies.The abundance of nitrogen in Earth's atmosphere
The red shift of distant galaxies shows that galaxies further away from us are moving quicker, suggesting that the universe is expanding.
White dwarfNeutron star
A supernova can form a black hole or a neutron star. A white dwarf form when a star doesn't have a large enough mass to go supernova.
Chandrasekhar limitPlanck mass
It's named after Subrahmanyan Chandrasekhar, the physicist who independently calculated the limit at the age of 19 in India. The Planck mass is much, much, much smaller.
And Opportunity is still roving!
In 400 yearsIn 40,000 years
Voyager 1 is the furthest human-made object from Earth, and it's just left the solar system. It's next stop is a star called AC +79 3888 40,000 years from now.
Vega 2 was a Soviet probe that landed on Venus in 1985. There have been flybys of the planet since, but no more landings.
One of the CCD chips in its Wide Field and Planetary Camera was missing.It's primary mirror was ground in the wrong shape.
The mirror was two microns too flat, and wasn't able to produce images as good as hoped.
Nine yearsNineteen years
All for just a few hours taking data when it got there – though analysis will take a lot longer.
The Hardest Space Quiz You'll Take Today
You really know your stuff! Carl Sagan would be proud.
This quiz was pretty tough, but you did well. Give yourself a pat on the back.
Space is not your best topic, but that's ok. Stay interested and keep learning!
You're not exactly a space whizz, but that's ok. Next time maybe you'd be better off just choosing at random, eh?
Kelly Oakes is science editor for BuzzFeed and is based in London.
Contact Kelly Oakes at firstname.lastname@example.org.
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