Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?

The newly discovered "twilight" asteroid, 2025 SC79, was obscured by the sun's glare until an astronomer pointed the Dark ...

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

Astronomers have discovered asteroid 2025 SC79, a skyscraper-sized space rock orbiting the sun in just 128 days. the ...

Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

A NASA-backed planetary defense group has reportedly begun efforts to pinpoint comet 3I/ATLAS after it was observed emitting ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

Recently, scientists discovered a number of new comets, two of which will be passing by Earth in October. Here's everything ...

Comet C/2025 A6 (Lemmon) was discovered early this year by one of the telescopes on — you guessed it — Mount Lemmon, where ...

Another small asteroid dubbed 2025 TQ2 also flew within Earth's vicinity the same day after 2025 TF's approach, according to the Minor Planet Center, an international organisation tracking asteroids, ...

2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that ...