Earth
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?
If every clock on Earth disappeared, how would we know what time and date it is?
How would you tell the time if every clock on Earth
were suddenly to disappear? Astronomy can help.
UK firm captures video of Moon's shadow on Earth during eclipse, plans 24/7 livestream from the Space Station
UK firm Sen has captured the Moon's shadow on Earth using its 4K satellite.
How close would a supernova have to be to affect life on Earth? Should we be worried?
Could an exploding star have a devastating effect on planet Earth and its inhabitants?
Want to see the April eclipse from space? NASA and NOAA captured images of the Moon's shadow on Earth
Eclipses clear the clouds! Research suggests solar eclipses have an effect on weather and cloud cover
Could solar eclipses change weather and clouds on Earth?
The Moon is orbiting further away from us, changing Earth's tides over billions of years
Marks left by tides billions of years ago suggest the Moon lay much closer.
A Lunar Ark seed vault on the Moon could ensure Earth's survival in the face of mass-extinction
Forget the Arctic seed bank, the Lunar Ark could provide the ultimate planetary insurance for our survival.
Where's the coldest place on Earth?
What would happen if Earth stopped spinning? We asked a planetary scientist to find out
If Earth's spin gradually slowed down, it would have a profound impact on technology, weather and life itself.
What if a supernova exploded close to Earth? Could they be responsible for past mass extinctions?
How devastating would a supernova explosion be if it were too close to Earth, and could our planet's magnetic field stifle the blast?
Clocks go forward on Easter Sunday as British Summer Time begins
When the clocks change and why.
Today marks the first day of spring! But why is this the spring equinox? Solstices and equinoxes explained
How Earth's tilt and orbit gives us seasons, solstices and equinoxes, and when they are occurring in 2024.
On foot, by car, by plane and by space station! How long does it take to travel around the world?
How long does it take to travel around the world on foot, by car, by plane and by space station?
Why are there two high tides and two low tides every day?
The Moon plays a large part in Earth's tides, but why are there two high tides in a lunar day?
What would the Andromeda Galaxy look like if we went there? And how would our Solar System appear?
What would Earth and the Sun look like when viewed from the Andromeda Galaxy? And what would the galaxy look like if we could travel there?
Earth, our home, is incredibly special. It's the only planet known to support life
Our average star the Sun has a unique selling point: it is the only star we know of to host a planet that has life on its surface.
An astronaut on Mars would be able to see Earth pass in front of the Sun. This is what it would look like
It's possible to see transits of Venus and Mercury from our planet, but could a Martian astronomer see a transit of Earth?
Stonehenge, astronomy and the solstice: How much do we know about Britain's prehistoric site?
Could Stonehenge have been an astronomical observatory used to celebrate the Solstice?
Happy leap year! The real reason why February has 29 days in 2024
In a Leap Year, there are 29 days in February, but why? It's to do with Earth's orbit around the Sun, the Gregorian Calendar and the Romans.
How the Moon's features compare with Earth's
The Moon looks great through a scope, but at over 380,000km away it's hard to get a sense of how big its features really are. The Sky at Night's Pete Lawrence reveals how lunar features compare to Earth's landmarks
Can you see the Great Wall of China from space?
It's a popular myth, but is there any weight behind the claim of the Great Wall's visibility from Earth orbit?
This is how many Earths could fit in the Sun
How big is Earth compared to the Sun, and how many times would our planet squish into the space occupied by our host star?
ERS-2 satellite breaks up as it enters Earth's atmosphere over Pacific Ocean
Where ERS-2 will break up, and when, and what its lasting legacy will be.