NASA is closely monitoring a bus-sized asteroid, “2025 XF1,” which is rapidly approaching Earth this week. With speeds of nearly 8,000 miles per hour, the space agency’s observations are critical for ...

Asteroid 2026 CU1 will sweep past Earth this week at high speed, close enough to attract attention yet deemed safe, raising ...

Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

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

"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

A 140-foot asteroid is set to sweep past Earth today, and it seems everyone is taking notice. Astronomers have been tracking the space rock, officiall.

An asteroid the size of a building could collide with the Moon in 2032 and generate a flash visible from Earth.

With help from amateur astronomers, scientists tracked how an asteroid travelled from space, broke up in Earth's atmosphere and sent fiery fragments shooting to the ground, gathering new information ...

An image captured by the Asteroid Terrestrial-impact Last Alert System (ATLAS) when it discovered asteroid 2024 YR4. An asteroid discovered late last year is expected to be in our neck of space in ...