Asteroid 2025 SC79 is the size of a skyscraper and moves around the solar system at a record-breaking speed. Astronomers ...

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

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically ...

Astronomers have identified 2025 SC79, a new asteroid with a remarkably fast 128-day orbit, placing it among the ...

A major asteroid has entered Earth's orbit, and some scientists and experts believe it is exhibiting behavior consistent with ...

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

NASA confirms comet 3I/ATLAS, a rare interstellar visitor, will safely pass the Sun and Venus in late 2025, offering ...

Researchers have found evidence of a previously unknown asteroid impact, but the crater is still at large. The clues of this bygone cataclysm consist of tektites—a type of natural glass that forms ...

A newly discovered asteroid just whizzed past Earth, marking the second-closest asteroid flyby on record, astronomers say. The asteroid flew over Antarctica just before 9 p.m. ET on Sept. 30, about ...