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In honor of our 20th anniversary, we offer a selection of some of the most beautiful, newsworthy, interesting, and scientifically important images from the past 20 years — one for each day of the calendar year.
Published Jun 19, 2019
Transverse cirrus clouds may look benign, but they are often associated with intense weather.
Published Jun 18, 2019
Exhaust creates cloud lines that trace the curved trajectories of ships.
Published Jun 14, 2019
The powerful storm barreled toward the coast and then changed direction.
Published Jun 13, 2019
Extreme temperatures baked northern cities for nearly three weeks.
Published Jun 12, 2019