27 Aug 2026 (23 hours away): Mercury at superior solar conjunction

27 Aug 2026 (18 hours away): Mercury at superior solar conjunction

27 Aug 2026 (19 hours away): Mercury at superior solar conjunction

From spy satellite to space telescope: The unlikely origins of NASA's Roman Space Telescope

27 Aug 2026 (20 hours away): Mercury at superior solar conjunction

27 Aug 2026 (21 hours away): Mercury at superior solar conjunction

27 Aug 2026 (22 hours away): Mercury at superior solar conjunction

Astronomers discover hot watery exoplanet destined to be swallowed by its star

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Massive space mirrors could be 40 times brighter than the full moon, astronomers warn. 'It will be worse than big cities like London'

Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets

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SpaceX sends Starlink satellites to orbit on predawn launch from California