Curiosity rover captures shining clouds on Mars

Cloudy days are rare in the thin, dry atmosphere of Mars. Clouds are typically found at the planet's equator in the coldest time of year, when Mars is the farthest from the Sun in its oval-shaped orbit. But one full Martian ...

Five things to know about Gagarin's journey to space

Sixty years ago on Monday cosmonaut Yuri Gagarin became the first person in space, securing victory for Moscow in its race with Washington and marking a new chapter in the history of space exploration.

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 ...