Cosmology
Is teleportation possible? This is what the science says
Could human teleportation, as seen in Star Trek, ever be achieved?
Why does it take light from galaxies so long to reach us if they used to be much closer?
Could the Universe have expanded at a speed faster than light?
This is what would happen if you fell into a black hole
If you fell into a black hole, could you survive? What would happen, and what would you see?
Could Earth ever be swallowed by a black hole?
Is it possible for Earth to fall into a black hole? Should we be worried about our home planet disappearing any time soon?
Nuclear pasta explained
Strange shapes of spaghetti and other pasta types thread their way around neutron stars.
How the Hubble Space Telescope completely revolutionised what we know about the Universe
For 30 years, Hubble has revealed the secrets of our Solar System, our Galaxy and our Universe.
Interview | What happened during the first seconds of the Universe?
We spoke to astrophysicist and Fermilab scientist Professor Dan Hooper, to find out what we currently know about the first moments after the birth of the Universe.
Scientists now think we CAN know what came before the Big Bang
New theories from leading physicists offer compelling possibilities about what existed before the early Universe. One thing they’re agreed on is that the Big Bang wasn’t the start.
Astronomers find missing matter in filament bridging galaxy clusters
11 questions about black holes - answered!
Answers to some of the most commonly-asked questions surrounding black holes.
Key eras and ages of the Universe
5 things you need to know about the Big Bang theory and the birth of our Universe
Want to know more about the Big Bang? Here are some of our favourite FAQs concerning the beginning of the Universe.
Astronomy explained | What is spacetime?
What is spacetime, and is time really all a matter of perspective?
Think nothing can travel faster than light? Think again. The early Universe expanded faster than light
According to Einstein, no matter can travel faster than light. So how did the early Universe expand at a rate faster than light?
Light from distant galaxies is stretched by the expansion of the Universe. It's called redshift, and this is how it works
What is the scientific meaning of the term 'redshift', and how does it relate to the expansion of the Universe?
Is dark matter light? Mysterious chemistry at the centre of our Galaxy points to a new feather weight option
How do we measure distance in space?
How do we know how far away objects are in space, and what units of measurements are used in astronomy for determining these distances?
Light can't escape their grasp, so how do scientists study black holes? We asked a theoretical physicist to find out
How do you study an object so dense that not even light can escape its gravitational pull?
Has JWST solved the question of the Universe's expansion rate?
Beginner's guide to gravitational lensing
What is gravitational lensing, and why is it useful to astronomers? We explore how bends in spacetime enable telescopes to see farther into the Universe.
9 things we still don't know about the Universe
Some of the cosmic mysteries eluding explanation.
Neutrinos could explain why the Universe didn’t just disappear after the Big Bang
Studying the fundamental particles known as neutrinos could reveal why there is any matter in the Universe at all.
What came before the Big Bang? These are the best theories we have about the origin of the cosmos
We explore the theories about one of the most mind-boggling questions about the Universe.
Antimatter explained
Why is there more matter than antimatter in the Universe?
