The green hydrogen and ammonia project would have increased light pollution at ESO’s Paranal Observatory in Chile’s Atacama Desert ...

There are a lot of moving pieces when it comes to building the world's largest telescope.

Astronomers are rejoicing over the cancellation of a $10bn project in Chile's Atacama Desert, which threatened the world's clearest skies.

The global push to decarbonize energy systems is increasingly clashing with land use, biodiversity, and cultural priorities, ...

Astronomers had warned that proximity of INNA facility to telescopes would have irreparably damaged observation ...

The newly discovered sungrazing comet C/2026 A1 (MAPS) will undergo an extremely close slingshot around our star in early ...

A mysterious object has caused a long-lasting and extreme dimming of a distant star, but is this object a 'failed star' brown dwarf, or an exceptionally massive super-Jupiter exoplanet?

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

Learn about a new Kreutz sungrazing comet that could be lighting up our skies come April 2026.

Explore the notable celestial events this week, including Moon phases, planetary positions, and star formations, with detailed viewing times and locations based on Sky & Telescope reports.

With new technology, smarter tools, and a lot of patient digging, historians and archaeologists are uncovering marvels from ...