The Sun, along with more than 1,500 other stars, journeyed from the middle of the Milky Way to its current position a few billion years ago.
Look north this evening a couple hours after sunset and you’ll easily spot the large shape of the Big Dipper as it sits upside-down in the sky, appearing to pour from its cup into that of the smaller ...
Sixty-five years ago, the USSR shocked the world by sending the first robotic emissary from Earth to the Moon. The September 1959 impact of Luna 2 on northeastern Mare Imbrium was a stunning ...
The Galilean moon Callisto disappears behind Jupiter in an occultation early this morning. The catch is that the event is only visible from the western half of the U.S., but observers farther east can ...
Io transits Jupiter’s broad disk late tonight, beginning at midnight EST. On the East Coast, Jupiter is still 40° high in the west at local midnight, readily visible as the brightest point of light in ...
In 2018, NASA’s OSIRIS-REx mission reached asteroid 101955 Bennu. Two years later, the spacecraft snagged a sample of its surface, which has since been returned to Earth. Now, astronomers are getting ...
Asteroid 7 Iris reaches opposition at 1 P.M. EST today. Now shining at 9th magnitude, you can best spot the main-belt world after dark, rising higher in the hours after sunset. By 10 P.M. local time, ...
One of the most enduring mysteries in astronomy may have just been solved — and sorry folks, it’s not aliens. In a paper posted last month to the arXiv preprint server, a team of astronomers report ...
On Oct. 10, 1846, William Lassell peered through his 20-foot reflector in Liverpool, England. Lassell was a self-funded amateur astronomer who had made a fortune as a brewer, and he’d built his own ...
A newly discovered comet has astronomers excited, with the potential to be a spectacular sight in early April. C/2026 A1 (MAPS) was spotted by a team of four amateur astronomers with a remotely ...
From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or November at intervals of 100.5, 79, 25.5, and 79 years. During these events, Earth and the Moon ...
In March of 1989, a highly active sunspot region released multiple extreme solar flares, including an X4.5 flare on March 10 and a M7.3 flare on March 12. Solar flares are ranked as B, C, M, and X ...
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