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Asked by to Nat, Nate, Roberto, Sam, Sarah on 13 Jun 2014. This question was also asked by .
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Natasha Stephen answered on 13 Jun 2014:
I know a lot about Mars because that’s what I have been studying for the last 5 years and I know a bit about our solar system as I teach it to my students, but Space is so huge, I can’t pretend to know very much about it at all! I’m not sure if anyone can!
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Nate Bastian answered on 13 Jun 2014:
I know a lot about stars, and collections of stars in galaxies and star clusters. However, I don’t think that I know much about the space between them, or the space between galaxies. Most of our universe is made up of (almost) empty space, consisting of huge voids between clusters of galaxies.
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Sam Connolly answered on 13 Jun 2014:
I mostly know about the most ‘extreme’ things in space – I know a lot about black holes of all sizes and quite a bit about things like Neutron stars (which are almost, but not quite as heavy as black holes) and white dwarfs (again, heavy, but not as much as Neutron stars). Anything that sucks up everything around and gives off loads of X-rays and I’m interested! I’m also pretty interested in exoplanets (planets outside our solar system), gravitational waves, gravitational lensing… and a lot of other things! I just might not find questions on those quite so easy to answer!
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Roberto Trotta answered on 13 Jun 2014:
The more I learn about space, the more I realize I know only a tiny fraction of all there is out there! What I know for sure is that 95% of the Universe is made of dark stuff (Dark matter and dark energy), about which we know very little or close to nothing.
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Sarah Casewell answered on 14 Jun 2014:
As with everyone else, I know a lot about the objects I study – stars, but I don’t know a huge amount about everything in astronomy! It’s such a large field, and we can’t all work on everything.
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