The fourth planet in the system is a rocky world, while the second and third ones are gas planets.

Emma Marcucci works for the Smithsonian Astrophysical Observatory, as Executive Director of the Smithsonian STARS program, which is supported through private gifts and donations. Scholars widely agree ...

After a string of dramatic failures, the huge Starship rocket from SpaceX had a fully successful test on Oct. 13, 2025. A couple more test flights, and SpaceX plans to launch it into orbit. A month ...

Eric and Wendy Schmidt are backing a start-up-like approach to building a giant space telescope and powerful ground observatories. By Kenneth Chang Kenneth Chang reported on the unveiling of Schmidt ...

The cosmos has taken up its fair share of space in the news this year. Here are some of the major stories from beyond Earth that happened during 2025. Jeff Bezos’ Blue Origin completed its first ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet that's got everyone talking, 2025 has been jam-packed with astronomical ...

(via Kurzgesagt) Our best theory of the universe might be breaking apart! The new data we're receiving from space telescopes is creating more and more cracks in our current understanding of the ...

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Have telescope, will travel, sometimes really far. The University of Virginia Occultation Group, astronomy undergraduates who observe and track asteroids and small planets, make most of their ...

During the 2025 Smithsonian Folklife Festival, sidewalk astronomers brought a sense of hope into Washington, D.C. Melia Person Star Trek called it the “final frontier.” When Jodie Foster’s character ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Astrophotography can make you feel two very different things: tiny ...