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.

One reason for the decline in extinction rates is the growing momentum of conservation efforts. Multiple species have been saved from extinction by habitat protections, breeding programs, and legal ...

A study found that these cosmic bodies appear to hold up remarkably well to sudden energy deposition and shock conditions, so ...

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

Kelly Fast, a planetary defense officer at NASA, says there could be 15,000 undetected asteroids that have the potential to take out a city.

Feb. 17's annular solar eclipse occurred as the lunar disk slipped between the sun and Earth during its new moon phase. The ...

NASA scientists recently expressed alarm over the potential threat posed by approximately 15,000 undetected asteroids capable ...

Scientists are raising serious alarms about hidden threats from space that could strike Earth without warning. NASA officials ...

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

An asteroid discovered in December 2024 and named YR4 has a small chance of hitting Earth in 2032. But scientists keep ...

Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...