Watch The Sky at Night
The team explore the astounding revelation that most of the Universe is invisible. Maggie finds out about the unknown substance called ‘dark matter’, and Chris goes underground to visit a facility that is searching for it. Jim Al-Khalili reveals how colliding stars help astronomers investigate the force that seems to be accelerating the expansion of the Universe.
Dr George Ricker: the launch of TESS
The mission’s principal investigator reveals how the satellite will hunt for worlds beyond the Solar System.
Build a rotating meteor shutter
Access extra PDF guides, images and diagrams to help with this month’s DIY
How To guide (page 82).
Get sneak previews of books we’ve reviewed
Download an audio and PDF excerpt from two of the books reviewed in this month’s issue (page 102).