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6 films
Four lion cubs develop their claws while still in the womb, preparing for survival before birth in a harsh environment.
Astronomers using NASA's Swift satellite detect a sudden black hole flare in the Milky Way.
Astronomers use Fermi and Swift to explore black holes and the high-energy universe.
Economic sanctions against Russia lead to a record low for the ruble and banking chaos.
Astronomers using Hubble detect atmospheric changes on exoplanet HD 189733b after a stellar eruption.
The West's toughest sanctions cut Russia off from Swift, impacting global banks and loans.
