Space
The US plans to put a nuclear-powered rocket in orbit by 2025
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Lost in Space-Time
Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the universe. You can sign up to the Lost in Space-Time newsletter here.
Space
Satellite that can clean up space junk with a magnet about to launch
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Space
Kilometre-high concrete towers on the moon could power a lunar base
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Physics
Photonic laser thruster could power spacecraft from Earth
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Space
We may have to rewrite our understanding of gravity
Comment
Physics
Did time flow in two directions from the big bang, making two futures?
Features
Space
Space junk foils astronomers observing oldest galaxy in the universe
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Physics
A warp drive that doesn't break the laws of physics is possible
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Space
Crew of mock lunar 'biosphere' grew food and made oxygen for 200 days
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Space
Solar Opposites review: Clever, silly and bound to be an instant hit
Culture
Space
NASA's Perseverance rover has sent back incredible images from Mars
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Space
NASA's Perseverance rover has landed safely on the surface of Mars
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