The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light ...

Astronomers are sounding alarm bells as the world's most precious sky-observing location faces a light pollution risk due to ...

Astronomers are raising concerns about the impact of light pollution from a renewable energy project on the world’s most ...

When Pagan and DePasquale first receive the images, they appear in black and white. The colors are added to the image later, ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

Find the best telescopes to unlock the wonders of the night sky and view lunar occultations, celestial conjunctions and planetary parades in January. "There are telescopes tailored to all sorts of ...

Six planets will be in alignment this weekend, with four of them shining bright in one sweeping view. What to know about the ...

The lanes and clouds of dust in the star-forming Orion Nebula (M42) reveal a dark dimension to this familiar object.

Venus and Saturn will appear extraordinarily close together in the night sky overnight on Jan. 17 during a celestial event ...

Telescopes like Hubble and the James Webb Space Telescope can observe some incredibly distant galaxies, stretching all the ...