Two Comets Are Moving Into Your Night Skies in October: How to Watch

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at the same time.

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NASA to Launch IMAP and Space Weather Missions on SpaceX Rocket: How to Watch

A NASA mission, IMAP, and two more spacecraft are heading to space atop a single SpaceX rocket.

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A Tiny Quasi-Moon is Following Earth Around the Sun

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years.

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Sept. 23: NASA could launch a mission to map the solar system’s boundaries.

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Newly Discovered Moon Around Uranus Was Hiding Outside Its Rings

The 29th moon found to be orbiting the solar system’s 7th planet is about six miles wide.

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California Supreme Court Requires New Review of Rooftop Solar Policy

The court revived a legal challenge to a 2022 regulation that significantly reduced the compensation utilities paid to owners of home solar systems for the electricity they sent to the grid.

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Hints of Life on Exoplanet K2-18b Recede Even Further

New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.

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Stars Passing Near the Sun Could Cause Planets to Collide or Be Ejected, Paper Says

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show.

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Vera Rubin Telescope Quickly Found 1,200 New Asteroids

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a mysterious Planet Nine.

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Edward Anders, Who Duped Nazis and Illuminated the Cosmos, Dies at 98

His research unraveled mysteries about the solar system and the demise of the dinosaurs. In retirement, he turned his attention to the Holocaust.

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