As the Palisades fire exploded in Los Angeles on Jan. 7, Mayor Karen Bass was posing for photos at an embassy cocktail party in Ghana, pictures posted on social media show. By the time she ...

They are not to scale but are in their relative positions. Credit: NASA/JPL Galileo Galilei’s telescopic discovery of Jupiter’s four moons in 1610 revolutionized astronomy and supported heliocentric ...

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On Jan. 7, 1610, Italian astronomer Galileo Galilei peered through his newly improved 20-power homemade telescope at the planet Jupiter. He noticed three other points of light near the planet, at ...