For once, Earth isn’t the one in the crosshairs. NASA scientists have confirmed that a fast-moving asteroid first spotted by ...

Astronomers discover 2025 SC79, the solar system's second-fastest asteroid, hiding in the Sun's glare. Learn why these ...

What: Comet 3I/ATLAS reached perihelion on October 30, 2025. This special SETI Live explored what scientists have learned about its origin, chemistry, and trajectory ...

Scientists reveal how the DART mission asteroid impact blasted 35 million pounds of debris and changed Dimorphos’ orbit. (CREDIT: Shutterstock) When engineers at a control center in Turin, Italy, sent ...

The range of possible locations – represented by yellow points – of 2024 YR4 on Dec. 22, 2032. The range decreased from April to June as we gained more data and improved our certainty of the ...

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

Scientists caution that asteroid deflection must be precise, as striking the wrong spot risks sending it through a gravitational keyhole that sets up a future collision with Earth. Using lessons from ...

Scientists are war-gaming humanity's worst nightmare: an asteroid with Earth's name on it. In April 2024, nearly 100 planetary defence experts gathered at Johns Hopkins Applied Physics Laboratory to ...

While the world's eyes were fixed on interstellar comet 3I/ATLAS and the vivid Comet Lemmon, another celestial traveller ...

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? Those are the ...

Some may eject huge plumes, while others could absorb the impact with less effect. “Every time we interact with an asteroid, we find something that surprises us, so there’s a lot more work to do,” ...