Watch live as the countdown ticks toward the launch of an Atlas 5 rocket Thursday from pad 41 at Cape Canaveral Air Force Station with NASA’s Mars 2020 Perseverance rover. The two-hour launch window opens at 12:50 p.m. BST (1150 GMT).

The OSIRIS-REx sample-return spacecraft is finding one surprise after another orbiting asteroid Bennu, including unexpected “ejection events.”

Juno programme officials hold a news conference at NASA’s Jet Propulsion Laboratory following the successful orbital insertion of the space probe around the gas giant Jupiter.