NASA's Curiosity views first 'sun rays' on Mars

Martian sunsets are uniquely moody, but NASA's Curiosity rover captured one last month that stands out. As the sun descended over the horizon on Feb. 2, rays of light illuminated a bank of clouds. These "sun rays" are also ...

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.

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