Japanese scientists say that silicon is likely the mystery element in the Earth's inner core, claiming progress on solving one of the planet's deepest secrets.
It turns out the moon is older than many scientists suspected: a ripe 4.51 billion years old.
Two more tropical disease-carrying mosquitoes have been found on the U.S. mainland for the first time, caught in traps near Florida's Everglades.
A series of cosmic collisions may have spawned multiple moonlets that morphed into the one big moon we know today.
"The Great Wall is an amazing sight, and it deserves to be seen in its best light," said veteran British runner William Lindesay in an interview with the BBC, after filming the wall from the air with the help of his family.
Macaques groom each other in the winter sunshine at Ueno Zoo in Tokyo, Saturday, Jan. 7. The temperature of Tokyo's metropolitan area dropped to near 0 degrees Celsius on Saturday morning.
The eggs of non-avian dinosaurs took three to six months to hatch, a long incubation period that could help explain dinosaurs' mass extinction 65 million years ago, according to new research.
This undated photo provided by Heritage Auctions shows a glass U.S. penny. Faced with a copper shortage at the beginning of World War II, the U.S. Mint authorized experiments to make pennies from other metals, plastic and rubber.
A fossil found in limestone along a remote South Texas riverbed could be that of a dolphin-like reptile that swam in oceans 90 million years ago, according to paleontologists.
Impeached President Park Geun-hye's surname is "Park," right? Nope. In Korean it's closer to "Bahk." Park's allegedly corrupt confidante, Choi Soon-sil, pronounces her name more like "Chwey" than the way it's rendered in English.