Space
Astronomers scramble as ‘alien megastructure’ star dims again
Tabby’s star’s weird behaviour has been blamed on everything from asteroids to aliens. Now astronomers are racing to watch its dimming in action
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Physics
LIGO could detect gravitational waves’ permanent space-time warp
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Space
Titan’s riverbeds show a terrain built more like Mars than Earth
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Space
Waves surge in opposite directions around Io’s largest lava lake
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Space
Earth may have been born in a huge flare-up of the young sun
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Space
Watch Cassini’s first two dives between Saturn and its rings
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Space
Marvel at the images from Cassini’s first Grand Finale orbit
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Space
First look at images from Cassini’s dive between Saturn’s rings
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Space
Infrared telescope spots mystery flare-ups in distant galaxies
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Space
Distant DeeDee could be a new dwarf planet
New observations of an object beyond Neptune show it could be big enough to be considered a world in the same class as Pluto and Ceres
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Space
Satellite swarms could increase space junk risk by 50 per cent
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Physics
Many tiny galaxies could host mammoth black holes
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Space
Saturn’s flying saucer moon Atlas has a smooth fluffy edge
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Space
Mars’s atmosphere hosts metal layers that shouldn’t exist
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