In response to US sanctions aimed at Russia's space industry, Russian Deputy Prime Minister Dmitry Rogozin suggested that US astronauts get to the space station using a trampoline. Given a big enough trampoline, could that actually work?
A devastating tornado that ripped through south-central states of Arkansas, Oklahoma and Iowa Sunday has killed at least 18. Why weather conditions in spring are conducive for tornadoes in the central and south US, say experts.
California's Yurok tribe has secured federal and state support to locate new reintroduction sites for the critically endangered California condor. The alliance comes on the heels of a historic state law banning the use of lead bullets, the main cause of the birds' high mortality in the wild.
The test, reviewed by SpaceX's Elon Musk on Friday, occurred as part of a mission that launched April 18 for the International Space Station. Mr. Musk also discussed why SpaceX has filed suit in US court.