Asteroid news: Elon Musk tweets about 'Armageddon' before NASA's critical asteroid mission

The “69” is likely a reference to the cost of NASA’s DART mission.

The mission carries a hefty price tag of around £56.5million ($69million).

NASA said: “The total cost for NASA to launch DART is approximately $69 million, which includes the launch service and other mission-related costs.

“The DART mission currently is targeted to launch in June 2021 on a Falcon 9 rocket from Space Launch Complex 4E at Vandenberg Air Force Base in California.

“By using solar electric propulsion, DART will intercept the asteroid Didymos’ small moon in October 2022, when the asteroid will be within 11 million kilometres of Earth.”

source: express.co.uk