Space
Mercury鈥檚 outer layers may have been stripped off by a young Venus
Mercury is mostly iron, which may be because a series of close encounters with a young Venus billions of years ago stripped away its rocky outer layers
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Space
When will we hear from aliens? We may already have done so
Video
Space
Interstellar comet Borisov is about to pass close to Earth and the sun
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Space
Celestial time travel: How asteroids can reveal the history of space
Video
Space
Exploring the wonders of the solar system
Video
Space
Distant space rock known as Ultima Thule renamed to avoid Nazi links
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Perseid meteor shower
Space
Voyager 2 sent back its first detailed data from interstellar space
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Space
Surprisingly round asteroid may actually be the smallest dwarf planet
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Space
The solar system has too many moons 鈥� it’s time for a cull
Designating rocks just a few kilometres across as moons is misleading and ridiculous. We need to do a Pluto and cut moons down to size, argues Leah Crane
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Space
Maggie Aderin-Pocock on space travel and humanity’s future
Regulars
Space
We may have spotted an interstellar comet flying towards Earth
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Physics
Tiny pebbles may be the reason most planets spin in the same direction
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Space
A total solar eclipse just passed over Chile and Argentina
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