The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...

See asteroid Dimorphous, pre- and post-impact, in this time-lapse of Hubble Space Telescope imagery. The space rock was impacted by NASA DART mission. Credit: SCIENCE: NASA, ESA, STScI, Jian-Yang Li ...

Space agencies maintain that global cooperation and sustained investment are vital to planetary defence. While the DART ...

A NASA planetary defense officer warns thousands of near-Earth asteroids capable of destroying a city remain undetected.

The universe might have far more amino acids lying around than we realized, which gives life itself far more chances to begin ...

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.

A top astronomer responsible for defending the Earth against asteroids has revealed what keeps her up at night — thousands of “city killer” space rocks that remain undetected. Dr Kelly Fast, NASA’s ...

A NASA scientist has warned that thousands of city-killing asteroids could strike Earth, and there’s currently no defense humanity could use to stop them.

Around 15,000 mid-sized asteroids, known as 'city-killers', are unaccounted for as they zoom around space close to planet ...

“What keeps me up at night is the asteroids we don’t know about," said NASA's planetary defense chief.

NASA's head of planetary defence, Dr Kelly Fast, has issued an unsettling update on thousands of ‘city-killer’ asteroids that could hit Earth.

Scientists estimate that around 15,000 medium-sized asteroids — large enough to devastate a city — remain undetected within ...