Interstellar objects move too fast and arrive too rarely for astronomy to rely on a single instrument or a single kind of light. When comet 3I/ATLAS was first reported on July 1, 2025, observatories ...

When we look up at the night sky and see a satellite glide past, we might not consider climate change or the ozone layer. Space may feel separate from the environmental systems that sustain life on ...

Scientists gathered in a conference earlier this year in an effort to solve the issue of satellite streaks ruining a powerful ...

A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...

The Hubble and Euclid space telescopes caught a stunning portrait of a dying star at the heart of the Cat's Eye Nebula.

War Machine imagines a machine arriving from space. Real astronomy has detected interstellar visitors like ʻOumuamua, 2I/Borisov and 3I/ATLAS.

When Ukrainian forces retook the site of the Braude Radio Astronomy Observatory in September 2022 after forcing a Russian ...

Spend 8 minutes with an image that has changed astronomy forever - the first-ever deep field view of galaxy cluster SMACS 0723 from the James Webb Space Telescope. Credit: NASA, ESA, CSA, and STScI | ...

Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in ...

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

The Committee on Astronomy and Astrophysics (CAA) provides an independent, authoritative forum for identifying and discussing issues in astronomy and astrophysics with the research community, the ...

Explore the differences between Astrophysics and Astronomy to help you decide which field is a better fit for your interests ...