Switching off is one of the best things to do during interstellar travel. We find out why
Space Exploration
Space Exploration
Astronomy
Why do some planets appear to move backwards through the sky?
You might not be aware, but planets can gradually change direction in the sky. We find out why
Deep Space
Are brown dwarfs more like stars or planets?
Planets, stars or something entirely different? We take a look to see what brown dwarfs are
Solar System
What would happen if the Sun disappeared?
Life without our Solar System’s only star would be rather uncomfortable, to say the least
Deep Space
What would happen if a planet crashed into a neutron star?
We take a look at the answer to this intriguing question
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