Live coverage of the countdown and launch of a Proton rocket with Europe’s ExoMars Trace Gas Orbiter and the Schiaparelli entry, descent and landing demonstrator module to Mars. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
Observing
See planet Venus dazzle at greatest brilliancy in the pre-dawn sky
Early risers wishing to see Venus as a dazzling ‘morning star’ need only glance low to the east in the pre-dawn sky. The planet reaches greatest brilliancy on Sunday, 20 September when, for a couple of mornings, it can be seen outshining brightest nighttime star Sirius in the southeast by a factor of seventeen times. Can you see your shadow cast by Venus?