Tech giants are gearing up for a series of potentially bitter legal battles over claims they used copyrighted material in training the latest generation of artificial intelligence ...

"The world must be able to execute a nuclear deflection mission with high confidence, yet cannot conduct a real-world test in ...

Fireballs are bright meteors and can be yellow, blue, red, green and sometimes violet. Fast-moving meteors are frequently reported as having a blue color.

If the building-size asteroid 2024 YR4 crashes into the moon in December 2032, the impact will produce a bright flash that ...

A rare carbonaceous meteorite discovered in the Western Sahara has captured the attention of scientists for containing grains ...

Only far smaller impacts have been observed directly. In 2013, a meteoroid weighing a few hundred kilograms struck the Moon, ...

A University researcher found evidence that a new species evolved faster than previously thought after a mass extinction ...

Most near-Earth asteroids are thought to drift in from the main asteroid belt. But a small subset may have a much closer origin: the moon. One intriguing example is 469219 Kamoʻoalewa (2016 HO3), an ...

NASA flags an asteroid, the odds shift, and better tracking usually turns worry into a clean miss. The system improves each ...

Late in 2024, astronomers spotted a new near-Earth asteroid named 2024 YR4. By mid-2025, its improved orbit tracking raised ...

A Sydney Ph.D. student has recreated a tiny piece of the universe inside a bottle in her laboratory, producing cosmic dust ...

A long-debated platinum spike in Greenland ice is best explained by volcanic activity rather than a cosmic impact, reshaping ideas about what triggered the Younger Dryas cooling. An unusual platinum ...