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Extraordinary giant structures discovered beneath the surface of Mars
Interestingly, he added: “There seems to be no trace of them at the surface. However, through gravity data, we have a tantalising glimpse into the older history of the northern hemisphere of Mars." ...
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Earth swallowed up an alien planet – and it's still lurking inside
This impact was between primordial Earth – known as Gaia – and a proto-planet around the size of Mars, known as Theia ... captured by Earth’s gravity, or that the Earth was once spinning so fast that ...
Earth may have once had an accessory: Evidence shows it may have had a ring like Saturn's
Planetary rings don’t last forever, although they do exist for millions of years. The evidence for Earth’s possible ring is ...
Astronomy18h
NASA crashed a spacecraft into an asteroid — and the Hera mission will survey the aftermath
Europe’s first planetary defense mission — a follow-up to NASA’s Double Asteroid Redirection Test — will launch as early as ...