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Tag: “giant impact”

Artist impression shows several comets speeding across a vast protoplanetary disc of gas and dust and heading straight for the youthful, central star HD 172555. (NASA, ESA, and A. Feild and G. Bacon (STScI))

Ants Goof Off Too; Milky Way Steals Stars; Astronomers Spot Exocomets

January 16, 2017

Ants Balance Work and Rest to Maintain Colony Ants have a reputation of being dedicated and hardworking creatures. But did you know that like humans, ants also seek to maintain a healthy balance of work and rest? While an ant colony appears to be filled with busy workers, according to new research, there are also […]

Ancient Zircon Reveals Age of Earth’s Crust

February 26, 2014

A tiny sliver of ancient zircon reveals the crust of our planet formed at least 4.4 billion years ago—160 million years after the birth of the solar system, according to a new study. Earth itself is believed to be about 4.5 billion years old. The researchers examined some of the oldest materials ever found on […]

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