One of the most important Russian space science missions in the post-Soviet era lifts off from Baikonur.Read more
The different methods scientists use to measure cosmic expansion fundamentally disagree with each other.
Lucy Hawking speaks to the BBC's Luke Jones about losing her father earlier this year and his new book which she has helped finish.
Friday night's lunar eclipse will last longer than any in the 21st Century.
The European Space Agency transmits Stephen Hawking's words across the galaxy