X-rays from nuclear explosions can protect Earth from asteroids
An asteroid heading toward Earth can be deflected without ever touching a spacecraft. The trick is to use X-rays to […]
Brain-controlled bionic limbs are getting closer to reality
The word “bionic” conjures up sci-fi visions of humans grown to superhuman levels. It is true that engineering advances such
50 years ago, satellites threatened astronomers’ view of the cosmos
Satellites interfere with radio astronomy – Scientific news, October 5, 1974 In the past, satellites and probes launched by NASA
A transatlantic flight could turn Saharan dust into a major ocean nutrient
As dust from the Sahara blows thousands of kilometers across the Atlantic Ocean, it becomes progressively more nutritious for marine