Coronavirus casts shadow over Everest

The Himalayan hilltown of Khumjung should be bustling ahead of Everest's climbing season, but the coronavirus has forced the shut down of the world's tallest mountain and threatened the livelihood of the famed local Sherpas.

Hawaii or Spain? Telescope experts say it may not matter

When starlight from billions of years ago zips across the universe and finally comes into focus on Earth, astronomers want their telescopes to be in the best locations possible to see what's out there.

Steam balloon to facilitate satellite launches

Steam balloons could be used to lift space rockets to higher altitude for launch. Launching from high altitude reduces air drag and thus improves efficiency. The researchers present the method in an article published in The ...