Venus, Jupiter and Mercury headline May's skywatching, with stunning moon pairings and a three-planet display.
Who’s ready for a “planet parade”? The last planetary alignment was in August 2025, when six planets aligned and four were bright enough to be seen without a telescope. Next week, Mercury, Venus, ...
Starting 18 April, Saturn, Mars, and Mercury will appear to “line up” from the perspective of viewers on Earth and will be visible to the naked eye in especially clear-skied areas. And a fourth, ...
Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.
Data analyzed by UChicago scientists reveals exoplanet Kua’kua is dark and rocky, offering clues to search for habitable ...
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