We take a look at the answer to this intriguing question
How did Mars get its polar ice caps?
It’s a fairly dry and dusty world, so how did Mars get its frosty poles?
Why do spacecraft need heat shields to enter Earth but not to leave it?
The science of re-entry explained
Why is Uranus colder than Neptune?
Why is the furthest planet from the Sun, Neptune, warmer than Uranus?
Where did the first particles of light come from?
The very first particles of light came from somewhere. We find out where
Cool ‘failed stars’ discovered in the solar neighbourhood
The objects, known as brown dwarfs, hold promise for helping us understand both stellar evolution and planet formation
New Habitable Zone suggested for exoplanets suitable for life
The search for habitable, alien worlds needs to make room for a second “Goldilocks,” according to a Yale University researcher
Venus may have once been habitable, NASA says
The hostile world may have had a shallow liquid-water ocean and habitable surface temperatures
Super-Earth’s climate patterns mapped for the first time
Observations from NASA’s Spitzer Space Telescope have led to the first temperature map of 55 Cancri e
If the universe is so cold, why do some space telescopes need to be cooled?
Why do spacecraft need to keep themselves at a low temperature to function properly?