Welcome issue 139

Two contrasting visions of humanity’s future in space

Pack your spacesuit and get ready to tick off the must-see sights of the Red Planet

Mars once had vast oceans on its surface. Then its magnetic field weakened, its atmosphere thinned, and its water vanished. But the numbers don’t add up. For the Red Planet to have transformed from a

The Universe is a big and complex beast, and doesn’t always behave in the way we might expect. So it’s not surprising that there are many misconceptions and misunderstandings about space. Some common

Some people think that the seas hold the key to protecting the planet.

This month, go wild for June, discover the secret world of penguins and listen to curious questions.