Earth
The end of life on Earth? It's when our planet runs out of oxygen, and scientists have worked out how long we've got
How far away would aliens have to be to detect life on Earth?
Earth from space | Las Vegas
The clocks go forward on 30 March 2025 as British Summer Time begins. Here's why it happens
When the clocks change and why.
Jupiter's storms and Earth's oceans are similar
Algae blooms from space
Springtime is here! This week marks the first day of spring as the equinox arrives
Solstices and equinoxes explained
How Earth's tilt and orbit gives us seasons, solstices and equinoxes, and when they are occurring in 2024.
Ireland from space
A selection of images of the Emerald Isle from Earth orbit.
Leap years explained, and why 2025 isn't one
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.
Why is life on Earth left-handed?
What are the chances of an asteroid hitting Earth?
The larger space rocks get, the less often they impact
Where does space begin?
Autumn equinox explained
When is the equinox in 2023, and what does September equinox mean for stargazers?
Yes, your Christmas lights CAN be seen from space – just ask NASA
Astronomical Unit explained
Incredible footage from NASA satellite shows the Moon passing Earth, from a million miles away
Astronaut Don Pettit's best images
December solstice explained
From shooting stars to cosmic rays and even gravity. This is how space affects Earth and life on our planet
Nadir crater
Why can't we feel Earth spinning?
Donut Earth
What would happen if Earth stopped spinning?
If Earth's spin gradually slowed down, it would have a profound impact on technology, weather and life itself.