Best Model Yet for Cosmic Evolution
Astronomers have created the most realistic computer simulation of the universe’s evolution to date, tracking activity across 13 billion years of cosmic history.
Black Holes Tango in Distant Galaxy
A bizarre X-ray flare first spotted in 2010 could be a signal from two black holes that will ultimately unite into a single beast.
Observing Highlights
This celebration of “bringing astronomy to the people” features events across the nation and around the world.
See Splendid Saturn at Its Best
Your first view of Saturn with a telescope can introduce you to the riches of stargazing — and now is the perfect time to observe it.
This Week’s Sky at a Glance, May 9-17
The waxing gibbous Moon in the evening sky forms a curving line with Mars to its left, and Spica to the lower left of Mars.
Tour May’s Sky: Evening Planets Align
May opens with the Moon just making its entrance into the evening sky and four planets strung along the ecliptic. Download our mp3 and head outside to take a guided tour of this month’s sky with senior contributing editor J. Kelly Beatty.
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