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On December 26, 2004, a giant earthquake of magnitude 9.3 on the Richter scale was triggered in the deep ocean off western Indonesia. Simultaneously, a devastating tsunami was generated, causing destruction and loss of life around Indian Ocean…

Two new studies offer insight into why infection with SARS-CoV-2—the coronavirus that causes COVID-19—often leads to loss of smell, as well as why some people experience debilitating symptoms months after infection—a condition known as long COVID.…

NASA's twin rovers Spirit and Opportunity set down on the surface of Mars in January 2004. After meeting the 90-day goal, both rovers continued to dig, measure, observe, photograph, and explore the rough terrain. This Image Gallery showcases images…

The European Space Agency's (ESA) first mission to Mars, called Mars Express, was launched June 2, 2003 and entered an orbit around the planet by December 25. This Image Gallery exhibits a number of images of Mars captured by the High Resolution…

Spanish histologist, Santiago Ramón y Cajal (1852-1934), is credited with establishing modern neuroscience in the early 20th century. Some of Cajal's earliest illustrations of the structures of the nervous system are reproduced in this gallery along…

Glaciers in cold mountain regions are key indicators of global climate change. This Image Gallery exhibits glaciers, their behavior, and influence on the surrounding environment. View mountain glaciers dramatically shaping our landscapes around the…

Otto Lilienthal and Octave Chanute were the pioneers of flight who most influenced and inspired Orville and Wilbur Wright. Photographs of Lilienthal, a German engineer, depict his flying attempts in various gliders before his career was cut short in…

Among the non-human animals that can be infected with—and become sick from—humans who have the SARS-CoV-2 virus that causes COVID-19 are deer, mink, hyenas, pigs, ferrets, dogs, cats, and primates such as rhesus macaque monkeys, baboons, and…

On January 15, 2022, in the South Pacific Kingdom of Tonga, the Hunga Tonga–Hunga Haʻapai submarine volcano violently exploded, sending ash 58 kilometers (36 miles) high into the mesosphere and triggering a tsunami with waves towering 15 m (49 ft)…

A supernova is the explosive death of a star. This Image Gallery exhibit shows optical, x-ray, and radio images of five famous supernova remnants of varying ages, from the extremely young (SN 1987A, at just over 15 years old) to the very old (Vela…