Born June 29, 1868, in Chicago, George Ellery Hale revolutionized American astronomy by, among other things, championing...
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Chirag Upreti from New York City Active region AR 4475, a cluster of sunspots that emerged June...
Looking for a sky event this week? Check out our full Sky This Week column. June 28: Mercury stands...
On June 28, 2011, Pluto’s moon Kerberos was discovered by a team using the Hubble Space Telescope,...
Looking for a sky event this week? Check out our full Sky This Week column. June 27: Mars meets...
Piotr Czerski, taken from Trzonów, Poland Galaxies M81 and M82 lie amid large clouds of galactic cirrus...
Space Shuttle Atlantis, a reusable winged spacecraft and the fourth space-qualified orbiter to join the U.S. space...
Looking for a sky event this week? Check out our full Sky This Week column. June 26: Mercury closes...
In November 2025, Airbus grounded approximately 6,000 of its A320 family of aircraft after an international flight...
On June 5, 2026, NASA ordered five astronauts aboard the International Space Station (ISS) to shelter in...
Why is the Moon exactly the same apparent size from Earth as the Sun? Surely this cannot...
Charles Messier was born in Badonviller, France, on June 26, 1730, the 10th child of court bailiff...
Looking for a sky event this week? Check out our full Sky This Week column. June 25: Iapetus passes...
Friday, June 26Even with a bright waxing Moon up most of the night, there are still plenty...
Luigi La Bella from Melilli, Italy The Squid Nebula (Ou4) is a faint cloud of oxygen about...
An airplane began its journey across the Pacific on Thursday, June 18, with a rocket strapped to...
Telescopes 4 inches or less in diameter are portable, easy to use, and great beginner instruments. Here,...
China’s Chang’e 6 mission successfully returned to Earth two years ago today, delivering the first-ever rock and...
Looking for a sky event this week? Check out our full Sky This Week column. June 24: Look for...
Most amateur astronomers live with light pollution. When a free schedule, the New Moon, and the ability to...
