Near-Earth asteroid Bennu has a slim chance of colliding with Earth in 2182. If it does, the impact could trigger a global ...
The authors also found evidence of w-shaped flood channels using seismic data and developed computer models to simulate how ...
Hence the sun should be getting hotter at a greater rate than the earth. The difficulties introduced by radium into earth history are greater than that which it was hoped it would remove.
This sample is particularly intriguing because it provides more context for the mysterious Mid-Pleistocene Transition—a period in Earth’s history when the glacial-interglacial cycle slowly ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果