Space

Blowing up a doomsday asteroid may not be possible, study reveals

'Superbubbles' from another galaxy might be blowing powerful cosmic rays in our direction

SpaceX ship connects with ISS — and 'Starman' had a front-row seat

Mars had a planet-wide groundwater system

Jupiter's atmosphere is still putting on a show

What to see in the night sky in March

'Dragon aurora' engulfs night sky over Iceland

Meet the 3 African-American female scientists who helped launch the space race

Japanese spacecraft collects asteroid samples

Dazzling blue clouds mark the first breath of newborn stars

Earth's atmosphere stretches further than we thought possible — to the moon and beyond

This beautiful photo of the moon is 50,000 images rolled into 1

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