The asteroids approaching Earth that keep NASA scientist up at night

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

NASA scientist warns there’s no way to stop thousands of city-killing asteroids from striking Earth: ‘It keeps me up at night’

She’s worried about the a-rock-alypse. A planetary defense expert is warning that humanity is defenseless against up to 15,000 undetected near-Earth asteroids that have the potential to take out a ...

NASA scientist issues stark warning about 15,000 undetected asteroids that could destroy cities: 'Keeps me up at night'

A planetary defense expert working for NASA warned that humanity has no defense against up to 15,000 undetected near-Earth asteroids that could wipe out a city.

‘City-killer’ asteroid threat: Could thousands of undetected space rocks hit Earth? Here’s what’s keeping NASA scientists awake at night

Space agencies maintain that global cooperation and sustained investment are vital to planetary defence. While the DART mission demonstrated that deflection technology works, experts say early ...