L ike many of us, Earth bears old pockmarks. Our planet’s crust has a band of ancient craters that formed around 465 million ...

Uranus and Neptune also have rings. And now, a new study published in the scientific journal Earth and Planetary Science Letters seems to show that Earth itself once had a similar ring.

A Chinese research group has developed a novel self-cleaning electrode by constructing a ... achieving highly stable synthesis of alkaline-earth MO 2. Their study is published in Nature ...