There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...
Astronomers have captured unprecedented, detailed images of two stellar explosions—known as novae—within days of their ...
WASHINGTON (AP) — Time moves a tad faster on the moon. Now an international group of astronomers has joined calls to give the moon its own clock so that future space missions can keep track of minutes ...
A newly proposed type of supermassive black hole surrounded by a dense gas shell may account for the small red dots seen in ...
A remarkable black hole, located 270 million light-years away in the Draco constellation, has become the center of groundbreaking discoveries. Known as 1ES 1927+654, this supermassive black hole has ...
That's a lot of standard candles. June 22 marks the 350th anniversary of the Royal Observatory Greenwich, the home of the historic Prime Meridian that is considered by many to be the birthplace of ...
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SETI’s ‘Noah’s Ark’ – a space historian explores how the advent of radio astronomy led to the USSR’s search for extraterrestrial life
The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. As humans began to ...
Few cosmic visitors have captured the fascination of astronomers quite like the interstellar comet 3I/ATLAS. Hurtling through our solar system from the depths of interstellar space, this icy wanderer ...
St. Augustine said of time, “If no one asks me, I know what it is. If I wish to explain to him who asks, I don’t know.” Time is an elusive concept: We all experience it, and yet, the challenge of ...
People usually apply to graduate programs at research universities in Washington. But uncertain funding means there could be ...
Comet C/2025 A6 (Lemmon) is currently visible in both morning and evening skies, initially located near the Big Dipper within Canes Venatici before transitioning into Boötes. Its perigee, the closest ...
Stargazers in parts of the U.S. have a fleeting opportunity this month to catch a rare celestial phenomena—a "parade" of seven planets—for the last time until the year 2036. Six of the planets—Venus, ...
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