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NGC 1052-DF9 is the third ultra-diffuse galaxy found lacking dark matter in a linear trail near NGC 1052, lending significant support to the Bullet Dwarf collision theory and challenging alternative gravity models.
The farthest Kreutz sungrazer ever discovered will pass just 161,000 kilometers above the Sun's surface on Saturday, threading the inner solar corona in a make-or-break encounter that could produce a comet visible in broad daylight or end in total disintegration.
NASA's Ignition initiative pauses the Lunar Gateway to redirect $20 billion over seven years toward building a permanent moon base, while repurposing Gateway hardware into SR-1 Freedom, a nuclear-powered spacecraft that will carry Ingenuity-class helicopters to Mars before the end of 2028.
The ACES survey stitched together ALMA's biggest mosaic to date, revealing dozens of molecules and intricate gas filaments across the galaxy's Central Molecular Zone.
South Africa's MeerKAT radio telescope has discovered a record-breaking hydroxyl gigamaser in a merging galaxy system, shattering the previous distance record by a factor of two.
Six months of observations of the third interstellar object ever detected have uncovered water, methane, and hydrogen cyanide in its coma--and a Jupiter flyby on March 16 could yield the closest-ever look at an interstellar visitor.