See Mars's Effect on Earth's Climate and Magnetic Avalanches on the Sun

Read news from the world of astronomy for the week of January 23, 2026.

Having trouble viewing this email? {Click here to read it on the Web.} Read news from the world of astronomy for the week of January 23, 2026. Subscribe to Sky & Telescope Magazine to receive full access to the articles below. Visit our FAQ page to learn more. This week in the world of astronomy, watch the exploding remnants of a star 17,000 light-years away and magnetic avalanches on the Sun. Plus, find out how Mars's moon Deimos may have reshaped itself. “Missing” Supernova Images Offer Measure of Universe’s Expansion Astronomers have found two gravitationally lensed supernovae that are missing images. Those images' arrival will offer a measure of the universe's expansion. Read More Astro-News Highlights NASA’s Budget Woes Are Over, For Now Congress has rejected Trump’s draconian cuts, passing a bill that funds the space agency similarly to 2025. Read More Watch Stellar Explosions Near and Far New videos from the Solar Orbiter and the Chandra X-ray Observatory capture magnetic avalanches on the Sun and the exploding remnants of a star 17,000 light-years away. Read More Martian Moon Deimos Might Have Reshaped Itself and Its Orbit A new study suggests that an early version of Mars’s smaller moon Deimos was pulverized by its own debris, explaining the moon’s oddities. Read More Scientists Measure Mars's Effect on Earth's Climate Tiny Mars might have an outsize effect on Earth’s climate over hundreds of thousands of years. Read More Visit Shop @ Sky for Atlases, Globes, and More! Observing Highlights This Week's Sky at a Glance, January 23 - February 1 Look west-southwest early this evening. Oops, the Moon dropped Saturn! Read More Nights with Mira, a Most Wonderful Star Mira the Wonderful is back! Of course, it’s always been there, but now it’s near maximum brightness and easily visible with the unaided eye. Read More January Podcast: Orion and Jupiter This time of year, you’ll always find the mighty Hunter rising up in the east at nightfall. He’s got real competition from Jupiter. Presented by: Celestron. Read More Community The Vera C. Rubin Observatory: A New Eye Opens Christopher Stubbs will briefly review the Rubin Observatory's history and describe how co-added and difference images can be used for projects. Read More The World's Largest Space and Astronomy Expo Returns! On April 11-12, over 100 of your favorite vendors, hundreds of fellow astronomy enthusiasts, and an incredible lineup of guest speakers will gather in Suffern, New York, for a cosmic extravaganza.  From a trusted S&T partner Read More Observing? But it's So Cold Outside! Stay warm with Sky & Telescope merch this January. Our high-quality, branded winter wear will help you keep out the cold while gazing up at the scintillating winter stars. Read More   Shop the S&T Swag Store Today! Sky & Telescope | American Astronomical Society | Privacy Policy

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