资讯

Roughly 252 million years ago, Earth experienced its deadliest known extinction. Known as the Permian–Triassic Mass ...
A prehistoric carbon spike turned oceans deadly and wiped out marine life. Scientists say today’s CO₂ rise could cause the ...
The oceans have always been alive with mystery, beauty, and change. For the first time, scientists have measured how much ...
In our analysis this week, we look at how NASA's proposed budget would slash the agency's science division by nearly 50%.