We take a look at the answer to this intriguing question
Deep Space
Deep Space
Deep Space
What gives a star its colour?
Find out why stars come in different colours
Solar System
Could Jupiter get a new red spot?
We find out if it’s possible for the gas giant to grow another of its famous red blemishes
Astronomy
Why can’t I see red dwarf stars with the naked eye?
The nearest star to our Sun is a red dwarf but why is it a struggle to see it?
Space Exploration
Is it possible for a spacecraft to be self-sustaining?
A craft with this ability would need to rely on plant life being able to flourish in space
Deep Space
What happens when a star’s fuel runs out?
We find out what happens when a star uses up all of its fuel
Deep Space
What happens when a giant star meets a smaller star?
Does one devour the other, or do they both co-exist? Find out the answer when stellar giants collide
Solar System
Why are all the planets different colours if they formed at the same time?
We take a look at why the members of the Solar System vary in colour
Solar System
Which comet takes the longest to orbit the Sun?
What is the longest-period comet we know about?
Deep Space
How many types of black hole are there?
These high-gravity objects come in more flavours than you might expect
Solar System
How big is the largest crater on Callisto?
We find out what the biggest impact is on this Galilean moon
Deep Space
Can you get a double supernova explosion?
One supernova explosion is enough to pack a punch, but can two go off at the same time?
Deep Space
Why are neutron stars so heavy?
We investigate why this is the case
Space Exploration
What would happen to a rocket that couldn’t reach escape velocity?
We reveal the answer to this intriguing question
Solar System
On which planet would I weigh the least?
Out of the eight planets, from Mercury to Neptune, on which of these would you weigh the least?
Space Exploration
What was the first spacecraft to arrive at a planet?
We recount the day when the first manmade spacecraft made contact with another world
Deep Space
Are planetary nebulae made by supernovae?
We find out if these beautiful structures are made by the titanic explosion of massive stars
Deep Space
How are comets made?
We take a look at how these ‘dirty snowballs’ are made
Solar System
Can you drink water from other planets?
We take a look at whether a glass of alien water is safe for us to drink
Solar System
What would happen if all of the gas planets’ atmospheres were stripped away?
It would take something special, but the consequences would change the Solar System as we know it