Will we ever have nuclear fusion?
For decades scientists have tried to generate an untapped source of energy by creating the conditions inside stars. Is the quest realistic or a futuristic joke?
View ArticleSpitzer’s amazing views of space
As Nasa’s telescope celebrates its tenth anniversary of revealing the Universe’s dark side, we show some of the most memorable images it has captured.
View ArticleSolving a planet-sized problem
We thought we knew how planets form, but the discovery of hundreds outside our Solar System changed all that, even what type of world can house life like ours.
View ArticleBest space images of the month
Here are some of the most stunning pictures captured during a memorable month in space – from bold new ventures to a galaxy far, far away.
View ArticleSpace radiation: Risk for flyers?
We’re bombarded with the radiation of supernovae and other cosmic sources when we fly – how concerned should we be?
View ArticleWe must be a multi-planet species
The technology to reach nearby planets is certainly possible, and one astronaut thinks we must achieve this for our long-term survival.
View ArticleBored? Hunt for some dark matter
Astronomers hunting for the invisible stuff that holds galaxies together are making progress by turning to the wisdom of the crowd.
View ArticleCould black holes provide energy?
It might seem like an absurd idea, but physicists have long pondered whether black holes could one day be tapped for energy, says Phil Ball. Is it possible?
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