NASA is evaluating a last-resort option that sounds like science fiction: a potential nuclear strike against an asteroid known as 2024 YR4. Originally flagged as a possible Earth impact risk, updated ...

NASA has raised red flags over growing asteroid threats that could potentially damage the Earth.To one’s surprise, astronomers are unaware of the location of thousands ...

James Webb Space Telescope (JWST) will provide insights far more precisely than ground telescopes can manage now, as the rock is too far away for most Earth-based instruments.

Two NASA scientists claim Earth is at risk from over 25,000 unknown asteroids that are yet to be discovered. If one of them moves towards the planet, no amount of preparation or a mission like DART ...

NASA's James Webb Space Telescope is tracking asteroid 2024 YR4, which has a small chance of hitting the Moon in 2032, to refine its trajectory and improve prediction models.

NASA's top planetary defense expert reveals the biggest threat isn't Hollywood-style doomsday rocks, but undiscovered ...

NASA officials warn thousands of undetected “city killer” asteroids may be circling near Earth. With limited deflection tools ready, are we prepared if one suddenly shifts onto a collision course?

NASA warns 15,000 mid-sized "city-killer" asteroids remain undetected. DART proved asteroid deflection possible, but no ...

Thousands of “city killer” asteroids remain undetected, NASA warns, and no ready spacecraft exists to stop one. A recent close call exposed gaps that scientists say still leave Earth vulnerable.

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.

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

NASA officials warn that around 15,000 'city-killer' asteroids remain undiscovered, many lurking in a stubborn observational blind spot near the sun.