A car sized asteroid can sound like a cliffhanger, yet the real tension lives in the math. NASA’s trackers list 2026 CR2 for a close pass on Feb. 17, 2026, moving about 12,616 miles per hour, with an ...

Once detected, there are plenty of narrow-field telescopes that can track the orbits of anything that looks alarming.

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?

"We would not have any way to go and actively deflect one right now," warns the scientist who led NASA's DART mission.

NASA warns asteroid YR4 has a 1 in 32 chance of impact by 2032. At 177 feet wide, it could flatten a city with an 8-megaton blast. JWST will refine its trajectory soon.

NASA planetary defense experts report that mid-size near-Earth asteroids could cause regional damage, with detection and deflection remaining limited, according to New York Post and AAAS reports.

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.

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.

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

NASA's head of planetary defence has revealed what keeps her up at night - tens of thousands of 'city killer' asteroids that remain undetected.

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.