News
- Earth
Climate clues in ice
A kilometers-long ice core from Antarctica has been recording climate information for the past 800,000 years and has revealed a three millennia–long period when carbon dioxide levels in the air were lower than any previously measured.
-
- Space
A shifty moon
Astronomers have found evidence that the icy shell of Jupiter's large moon Europa has rotated nearly a quarter-turn, which supports the notion that the moon has a subterranean ocean.
- Life
Identifying viable embryos
New genetic tests to distinguish viable from nonviable embryos may help eliminate risky multiple births from fertility procedures.
