New details from the Webb telescope indicate there might be a fundamental problem with our understanding of the universe. The spiral galaxy NGC 4258, imaged by the Hubble Space Telescope, measures ...

It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

Astronomers have revealed a cosmic butterfly to mark 25 years of a powerful space telescope. Students voted for the Gemini South telescope in Chile to image NGC 6302, a billowing planetary nebula, to ...

The world's largest optical telescope is seen taking shape in an amazing image. The European Southern Observatory's Extremely Large Telescope (ELT) is being constructed on the Cerro Armazones mountain ...

Getting to zero carbon emissions won’t save the world. We’ll have to also remove carbon from the air—a massive undertaking unlike anything we’ve ever done. Scientists monitor a mesocosm—an ...

Light from the half a million satellites that humanity is planning to launch into Earth's orbit in the coming years could contaminate almost all the images taken by space telescopes, NASA astronomers ...

The U.S. Surgeon General has called for adding cancer warnings to alcohol labels—as scientific evidence mounts that even moderate drinking may be more harmful than we thought. A glass of red wine a ...

Whether you want a basic scope or a more advanced system, Amazon has tons of Celestron models for the lowest prices of the year during Cyber Monday. By Stan Horaczek Published Nov 30, 2025 9:42 PM EST ...