As the familiar wintertime constellations begin setting earlier each evening, it’s our last chance to catch some of the deep-sky treasures they contain. The constellation Monoceros lies east of better ...
NASA’s Suomi NPP satellite captured this composite image of southern Africa and the surrounding oceans on April 9, 2015. As sea levels in these oceans rise due to climate change, Earth’s rotation ...
From Earth, we only ever see one side of the Moon. This is because the time it takes the Moon to rotate around its own axis happens to be the same amount of time it takes for the Moon to orbit Earth: ...
NASA’s Van Allen Probe A re-entered Earth’s atmosphere on Wednesday, March 11, at 6:37 a.m. EDT, marking the final chapter for a spacecraft that reshaped scientists’ understanding of the radiation ...
The vernal equinox occurs at 10:46 A.M. EDT, bringing astronomical spring to the Northern Hemisphere as the Sun stands directly over Earth’s equator. On this day, the Sun also sits at the celestial ...
The Moon passes 4° north of Jupiter at 8 A.M. EDT. By evening, they are high overhead in Gemini the Twins, now nearly 8° apart as the Moon sits near Pollux, the slightly brighter of the two brothers’ ...
Born March 24, 1893, in Germany, Wilhelm Heinrich Walter Baade earned his Ph.D. from the University of Gottingen in 1919. He went on to a career at the Hamburg Observatory, then, in the late 1920s, ...
NASA is targeting April 1 for the launch of Artemis 2, with additional opportunities through April 6. The agency’s Space Launch System (SLS) rocket and Orion spacecraft completed their second rollout ...
As close as we astronomers love to feel to space, one thing stands between us and the outer reaches: Earth’s atmosphere. More than 60 miles (97 kilometers) of gases separate us from the cosmos, and it ...
In a study published today in Science, researchers say they have solved a climate enigma — the inexplicable surge in global temperature in 2023, rising faster than climate models predicted. By ...
Saturn reaches opposition at 2 A.M. EDT, visible all night and offering stunning views of its rings and moons. The ringed planet now rises around sunset and is highest around local midnight, when it ...
Mercury reaches its greatest western elongation 19° from the Sun at 6 A.M. EDT. Now shining a bright magnitude 0, it stands 5° high in the east an hour before sunrise. The planet is now some 42 ...
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