Watch Tim Peake’s spacewalk live

Tim Peake speaks to Astronomy Now’s Greg Smye-Rumsby about his historic mission to the International Space Station, scheduled for launch on 15 December 2015.

The NICER telescope array aboard the International Space Station has made the most accurate measurements yet of a pulsar’s mass and size.

Britain’s first astronaut, Helen Sharman, received a congratulatory phone call from Tim Peake aboard the International Space Station during celebrations in London to mark the 25th anniversary of her historic mission to the Mir space station.